CVE-2008-0163

Linux kernel 2.6, when using vservers, allows local users to access resources of other vservers via a symlink attack in /proc.

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://secunia.com/advisories/28875
• http://www.debian.org/security/2008/dsa-1494
• http://www.securityfocus.com/bid/27704
• http://www.securityfocus.com/bid/27798
• https://exchange.xforce.ibmcloud.com/vulnerabilities/40486