Auth bypass in Xscreensaver
CVE-2007-1859
XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function in drivers/lock.c when there is no network connectivity, which causes XScreenSaver to crash and unlock the screen and allows local users to bypass authentication.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.6 (Medium). Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (35.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Xscreensaver — versions 4.10
- Red Hat Enterprise Linux — versions 2.1, 3.0, 4.0
- Red Hat Enterprise Linux Desktop — versions 3.0, 4.0
- Red Hat Linux Advanced Workstation — versions 2.1
Weakness classification (CWE)
References
- secunia.com/advisories/25610 (third-party-advisory)
- secunia.com/advisories/25119 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/25105 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/25065 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/25116 (Vendor Advisory, third-party-advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:11459 (signature, vdb-entry)
- secunia.com/advisories/25225 (Vendor Advisory, third-party-advisory)
- www.mandriva.com/security/advisories (vendor-advisory)
- www.novell.com/linux/security/advisories/2007_9_sr.html (vendor-advisory)
- issues.rpath.com/browse/RPL-1293