Gentoo Portage dispatch-conf script symlink attack
| portage-dispatchconf-symlink (17986) |  Medium Risk |
Description:
The dispatch-conf script in Gentoo's Portage package could allow a local attacker to launch a symlink attack. The dispatch-conf script creates temporary files in the /tmp directory with predictable file names. A local attacker could use this vulnerability to launch a symlink attack by creating a symbolic link from a temporary file, which could allow the attacker to create or overwrite files on the system with privileges of the user running the script.
Platforms Affected:
- Gentoo, Linux
Remedy:
For Gentoo Linux:
Upgrade to the latest version of portage (2.0.51-r3 or later), as listed in GLSA 200411-13. See References.
Consequences:
File Manipulation
References:
- Bugzilla Bug 69147, sys-apps/portage: Two symlink vulnerabilities in dispatch-conf at http://bugs.gentoo.org/show_bug.cgi?id=69147.
- BID-11616: Gentoo Portage Dispatch-Conf Insecure Temporary File Creation Vulnerability
- CVE-2004-1107: dispatch-conf in Portage 2.0.51-r2 and earlier allows local users to overwrite arbitrary files via a symlink attack on temporary files.
- GLSA-200411-13: Portage, Gentoolkit: Temporary file vulnerabilities
- SA13108: Gentoo Portage/Gentoolkit Insecure Temporary File Creation
Reported:
Nov 08, 2004
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