Remote Code Execution (RCE)

The nokogiri gem is susceptible to Remote Code Execution RCE. These vulnerabilities are possible because the gem contains a version of the libxml2 C package which is affected by CVE-2017-7375 and CVE-2017-7376 respectively. These vulnerabilities allow a malicious user to pass a XML file to execut...

Remote Code Execution (RCE)

The nokogiri gem is susceptible to remote code execution RCE attacks. The attacks exist because the library uses the C package libxml2 which is vulnerable to CVE-2017-0663, allowing a malicious user to pass a XML file to execute arbitrary code or crash the application...

RubyGems: Unpacker improperly validates symlinks, allowing gems writes to arbitrary locations

Unpacker improperly validates symlinks, allowing gems writes to arbitrary locations The RubyGems installer attempts to prevent a gem from writing any files outside the install directory; however it is possible to bypass the check with a symbolic link in a crafted gem. Example structure of malicio...

FreeBSD : rubygem-geminabox -- XSS & CSRF vulnerabilities (2bffdf2f-9d45-11e7-a25c-471bafc3262f)

Gem in a box XSS vulenrability - CVE-2017-14506 : Malicious attacker create GEM file with crafted homepage value gem.homepage in .gemspec file includes XSS payload. The attacker access geminabox system and uploads the gem file or uses CSRF/SSRF attack to do so. From now on, any user access...

Fedora 25 : ruby (2017-e136d63c99)

Fix ANSI escape sequence vulnerability CVE-2017-0899. - Fix DoS vulnerability in the query command CVE-2017-0900. - Fix a vulnerability in the gem installer that allowed a malicious gem to overwrite arbitrary files CVE-2017-0901. - Fix DNS request hijacking vulnerability CVE-2017-0902. - Fix...

Nokogiri gem, via libxml, is affected by DoS and RCE vulnerabilities

The version of libxml2 packaged with Nokogiri contains several vulnerabilities. Nokogiri has mitigated these issues by upgrading to libxml 2.9.5. It was discovered that a type confusion error existed in libxml2. An attacker could use this to specially construct XML data that could cause a denial ...

rubygem-geminabox -- XSS & CSRF vulnerabilities

Gem in a box XSS vulenrability - CVE-2017-14506: Malicious attacker create GEM file with crafted homepage value gem.homepage in .gemspec file includes XSS payload. The attacker access geminabox system and uploads the gem file or uses CSRF/SSRF attack to do so. From now on, any user access Geminab...

iBall ADSL2+ Home Router - Authentication Bypass Vulnerability

Exploit for hardware platform in category web applications Exploit Title: iBall ADSL2+ Home Router Authentication Bypass Vulnerability CVE: CVE-2017-14244 Exploit Author: Gem George Author Contact: https://www.linkedin.com/in/gemgrge Vulnerable Product: iBall ADSL2+ Home Router WRA150N...

Heap exposure vulnerability in generating JSON

There is a heap exposure vulnerability in JSON bundled by Ruby. The generate method of JSON module optionally accepts an instance of JSON::Ext::Generator::State class. If a malicious instance is passed, the result may include contents of heap. All users running an affected release should either...

Buffer underrun vulnerability in OpenSSL ASN1 decode

There is a buffer underrun vulnerability in OpenSSL bundled by Ruby. If a malicious string is passed to the decode method of OpenSSL::ASN1, buffer underrun may be caused and the Ruby interpreter may crash. All users running an affected release should either upgrade or use one of the workarounds...

RubyGems < 2.6.13 - Arbitrary File Overwrite Exploit

Exploit for linux platform in category local exploits There is no check for name field in metadata.gz. By assigning a maliciously crafted string like ../../../../../any/where to the field, an attacker can create an arbitrary file out of the directory of the gem, or even replace an existing file...

CVE-2017-0900

It was found that rubygems could use an excessive amount of CPU while parsing a sufficiently long gem summary. A specially crafted gem from a gem repository could freeze gem commands attempting to parse its summary...

Design/Logic Flaw

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences...

CVE-2017-0899

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences...

ALPINE-CVE-2017-0900

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a query command...

CVE-2017-0899

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences...

DEBIAN-CVE-2017-0900

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a query command...

DEBIAN-CVE-2017-0902

RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls...

ALPINE-CVE-2017-0899

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences...

DEBIAN-CVE-2017-0899

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences...