CVE-2017-8810

Description

MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2, when a private wiki is configured, provides different error messages for failed login attempts depending on whether the username exists, which allows remote attackers to enumerate account names and conduct brute-force attacks via a series of requests.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.01% Top 25%
Vendor Advisory debian.org Vendor Advisory wikimedia.org
Affected: n/a MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1039812 vdb entry third party advisory
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html mailing list patch vendor advisory
https://www.debian.org/security/2017/dsa-4036 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-8810?
CVE-2017-8810 has been scored as a high severity vulnerability.
How to fix CVE-2017-8810?
To fix CVE-2017-8810, 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-2017-8810 being actively exploited in the wild?
It is possible that CVE-2017-8810 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.
What software or system is affected by CVE-2017-8810?
CVE-2017-8810 affects n/a MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2.
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