BitchX e_hostname() symlink
| bitchx-ehostname-symlink (38262) |  Medium Risk |
Description:
BitchX could allow a local attacker to launch a symlink attack. The e_hostname() function in the commands.c file creates insecure temporary files. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to other files on the system using the insecure tmpnam() function, which would allow the attacker to overwrite arbitrary files on the system with the privileges of the victim.
Platforms Affected:
- Colten Edwards, BitchX 1.1a
- Gentoo, Linux
Remedy:
Apply the appropriate patch for your system. See References.
Consequences:
File Manipulation
References:
- BitchX Web site, BitchX at http://www.bitchx.com/.
- Debian Bug report logs - #449149, insecure temporary file creation at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=449149.
- slackware-security Mailing List, Sun, 26 Apr 2009 15:51:05 -0700 (PDT), bitchx EOLed in Slackware (SSA:2009-116-02) at http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.285737.
- BID-26326: BitchX E_HOSTNAME Function Insecure Temporary File Creation Vulnerability
- CVE-2007-5839: The e_hostname function in commands.c in BitchX 1.1a allows local users to overwrite arbitrary files via a symlink attack on temporary files when using the (1) HOSTNAME or (2) IRCHOST command.
- GLSA-200807-12: BitchX: Multiple vulnerabilities
- SA27463: BitchX "e_hostname()" Insecure Temporary File Creation
- SA31180: Gentoo BitchX Multiple Vulnerabilities
- SA34870: Slackware bitchx Multiple Vulnerabilities
- VUPEN/ADV-2007-3714: BitchX e_hostname() Insecure Temporary File Creation Vulnerability
Reported:
Nov 03, 2007
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