CVE-2007-3916

The main function in skkdic-expr.c in SKK Tools 1.2 allows local users to overwrite or delete arbitrary files via a symlink attack on a skkdic$PID temporary file.

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://bugs.gentoo.org/show_bug.cgi?id=193121
• http://osvdb.org/40557
• http://secunia.com/advisories/26866
• http://secunia.com/advisories/27247
• http://security-tracker.debian.net/tracker/CVE-2007-3916
• http://security.gentoo.org/glsa/glsa-200710-10.xml
• http://www.securityfocus.com/bid/25739
• https://exchange.xforce.ibmcloud.com/vulnerabilities/36699