CVE-2014-3219

fish before 2.1.1 allows local users to write to arbitrary files via a symlink attack on (1) /tmp/fishd.log.%s, (2) /tmp/.pac-cache.$USER, (3) /tmp/.yum-cache.$USER, or (4) /tmp/.rpm-cache.$USER.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Potential Mitigations

• Follow the principle of least privilege when assigning access rights to entities in a software system.
• Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/132.html
• https://cwe.mitre.org/data/definitions/17.html
• https://cwe.mitre.org/data/definitions/35.html
• https://cwe.mitre.org/data/definitions/76.html

References

• http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132751.html
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00059.html
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00071.html
• http://security.gentoo.org/glsa/glsa-201412-49.xml
• http://www.openwall.com/lists/oss-security/2014/05/06/3
• http://www.openwall.com/lists/oss-security/2014/09/28/8
• http://www.securityfocus.com/bid/67115
• https://bugzilla.redhat.com/show_bug.cgi?id=1092091
• https://github.com/fish-shell/fish-shell/commit/3225d7e169a9edb2f470c26989e7bc8e0d0355ce
• https://github.com/fish-shell/fish-shell/issues/1440