Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2020-25827

Improper Restriction of Excessive Authentication Attempts

Published: Sep 27, 2020 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-25827
CWEhttps://cwe.mitre.org/data/definitions/307.html

An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.

Weakness

The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.

Affected Software

NameVendorStart VersionEnd Version
MediawikiMediawiki*1.31.10 (excluding)
MediawikiMediawiki1.32.0 (including)1.34.4 (excluding)
MediawikiUbuntubionic*
MediawikiUbuntufocal*
MediawikiUbuntutrusty*
MediawikiUbuntuupstream*

Potential Mitigations

  • Common protection mechanisms include:

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].

  • Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]

References

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