CVE-2009-4527

Name: CVE-2009-4527
Creator: NVD / NIST
Published: 2009-12-31T19:30:00.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.33%

Last modified Jun 16, 2026

CVE-2009-4527 is a vulnerability of currently unknown severity. The Shibboleth authentication module 5.x before 5.x-3.4 and 6.x before 6.x-3.2, a module for Drupal, does not properly remove statically granted privileges after a logout or other session change, which allows physically proximate attackers to gain privileges by using an unattended web browser.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

The Shibboleth authentication module 5.x before 5.x-3.4 and 6.x before 6.x-3.2, a module for Drupal, does not properly remove statically granted privileges after a logout or other session change, which allows physically proximate attackers to gain privileges by using an unattended web browser.

Metrics

EPSS Probability

0.33%

24.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions	Update
Niif	Shib Auth	5.x-1.x	Dev
Niif	Shib Auth	5.x-2.1	—
Niif	Shib Auth	5.x-2.2	—
Niif	Shib Auth	5.x-2.4	—
Niif	Shib Auth	5.x-2.5	—
Niif	Shib Auth	5.x-2.x	Dev
Niif	Shib Auth	5.x-3.3	—
Niif	Shib Auth	5.x-3.x	Dev
Niif	Shib Auth	6.x-1.x	Dev
Niif	Shib Auth	6.x-2.0	—
Niif	Shib Auth	6.x-2.1	—
Niif	Shib Auth	6.x-2.2	—
Niif	Shib Auth	6.x-2.x	Dev
Niif	Shib Auth	6.x-3.0	—
Niif	Shib Auth	6.x-3.1	—
Niif	Shib Auth	6.x-3.x	Dev

References

http://drupal.org/node/604488Patch, Vendor Advisory
http://secunia.com/advisories/37057Vendor Advisory
http://www.securityfocus.com/bid/36684
http://www.vupen.com/english/advisories/2009/2919Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/53779
http://drupal.org/node/604488Patch, Vendor Advisory
http://secunia.com/advisories/37057Vendor Advisory
http://www.securityfocus.com/bid/36684
http://www.vupen.com/english/advisories/2009/2919Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/53779

Timeline

Published: Dec 31, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-4527?

How severe is CVE-2009-4527?

Severity scoring for CVE-2009-4527 is pending analysis. The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2009-4527?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-4527?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST