CVE-2005-1880

everybuddy 0.4.3 and earlier allows local users to overwrite arbitrary files via a symlink attack on a temporary file created by a system call to wget.

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=94473
• http://lists.grok.org.uk/pipermail/full-disclosure/2005-June/034422.html
• http://securitytracker.com/id?1014110
• http://www.securityfocus.com/bid/13865
• http://www.zataz.net/adviso/everybuddy-06062005.txt