Zsh difflog.pl symlink
| zsh-difflog-symlink (38812) |  Medium Risk |
Description:
Zsh could allow a local attacker to launch a symlink attack. The difflog.pl script 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 difflog.pl script which would allow the attacker to overwrite or delete arbitrary files on the system with elevated privileges.
Platforms Affected:
- Geoff Wing, Zsh 4.3.4 and prior
Remedy:
No remedy available as of July 4, 2009.
Consequences:
File Manipulation
References:
- Gentoo Bugzilla Bug 201022, app-shells/zsh insecure temporary file creation (CVE requested) at https://bugs.gentoo.org/show_bug.cgi?id=201022.
- Zsh Web site, Zsh at http://www.zsh.org/.
- BID-26674: Zsh Insecure Temporary File Creation Vulnerability
- CVE-2007-6209: Util/difflog.pl in zsh 4.3.4 allows local users to overwrite arbitrary files via a symlink attack on temporary files.
- SA27899: Zsh difflog.pl Insecure Temporary Files
Reported:
Dec 02, 2007
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