VUPEN Security - Xen "xenbaked" and "xenmon" Insecure Temporary File Handling Issue / Exploit (Security Advisories)

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>> Xen "xenbaked" and "xenmon" Insecure Temporary File Handling Issue

Title : Xen "xenbaked" and "xenmon" Insecure Temporary File Handling Issue
Advisory ID : VUPEN/ADV-2007-3621
CVE ID : CVE-2007-3919
Rated as : Low Risk

Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2007-10-25

Advisory Details

Description

Affected Products

Solution

References

Technical Description

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A vulnerability has been identified in Xen, which could be exploited by local attackers to bypass security restrictions. This issue is caused by an error in the "xenbaked" daemon and "xenmon" utility when handling the temporary file "/tmp/xenq-shm", which could allow malicious users to conduct symlink attacks and truncate arbitrary files with the privileges of the user invoking the vulnerable application.

Credits

Vulnerability reported by Steve Kemp (Debian).

ChangeLog

2007-10-25 : Initial release

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