Input validation error in WeeChat - CVE-2012-5534
Published: December 3, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43278
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-5534
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The hook_process function in the plugin API for WeeChat 0.3.0 through 0.3.9.1 allows remote attackers to execute arbitrary commands via shell metacharacters in a command from a plugin, related to "shell expansion."
Affected software
WeeChat
Gentoo Linux
Fedora
weechat
Gentoo Linux
Fedora
weechat
How to mitigate CVE-2012-5534
Install update from vendor's website.
weechat - addressed in versions 0.3.8-4.el6, 0.3.9.2-2.el6
External References
- http://git.savannah.gnu.org/gitweb/?p=weechat.git;a=commitdiff_plain;h=efb795c74fe954b9544074aafcebb1be4452b03a
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093260.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093495.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093516.html
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00018.html
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00087.html
- http://secunia.com/advisories/51294
- http://secunia.com/advisories/51377
- http://weechat.org/security/
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:136
- http://www.openwall.com/lists/oss-security/2012/11/19/4
- http://www.securityfocus.com/bid/56584
- https://savannah.nongnu.org/bugs/?37764
- https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0347