CVE-2013-4304

Public Exploit

Description

The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 0.56%
Third-Party Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://seclists.org/oss-sec/2013/q3/553 mailing list
https://exchange.xforce.ibmcloud.com/vulnerabilities/86894 vdb entry
http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html patch mailing list
https://bugzilla.wikimedia.org/show_bug.cgi?id=52338 exploit
http://osvdb.org/96910 vdb entry
http://secunia.com/advisories/54723 third party advisory

Frequently Asked Questions

What is the severity of CVE-2013-4304?
CVE-2013-4304 has been scored as a high severity vulnerability.
How to fix CVE-2013-4304?
To fix CVE-2013-4304, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4304 being actively exploited in the wild?
It is possible that CVE-2013-4304 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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