Improper Restriction of Excessive Authentication Attempts

Affecting mediawiki package, versions <1:1.27.7-1~deb9u4

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NVD Description

Note: Versions mentioned in the description apply to the upstream mediawiki package. See Remediation section below for Debian:9 relevant versions.

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.

Remediation

Upgrade Debian:9 mediawiki to version 1:1.27.7-1~deb9u4 or higher.

References

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    High
  • Availability
    None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVE
CVE-2020-25827
CWE
CWE-307
Snyk ID
SNYK-DEBIAN9-MEDIAWIKI-1012659
Disclosed
27 Sep, 2020
Published
25 Sep, 2020