GHSA-5vj8-g3qg-4qh6 BIT-mediawiki-2023-29141 CVE-2023-29141
X-Forwarded-For header allows brute-forcing autoblocked IP addresses
- Severity
- 9.8 / 10
- Critical · CVSS 3.1
- Exploit chance (EPSS)
- 1.19%
- Chance of exploitation in the next 30 days. Higher than 68.04% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
- Fix
1.39.3- Upgrade mediawiki/core to this version or later
Description
An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3. An auto-block can occur for an untrusted X-Forwarded-For header.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| mediawiki/core | >= 1.39.0, < 1.39.3 |
1.39.3 |
| mediawiki/core | >= 1.38.0, < 1.38.6 |
1.38.6 |
| mediawiki/core | < 1.35.10 |
1.35.10 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
mediawiki/core Packagist → 1.39.3
- composer
composer require mediawiki/core:^1.39.3
Severity breakdown
CVSS 3.1 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Weakness
CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
How to prevent it
- Implementation: Use a web server that employs a strict HTTP parsing procedure, such as Apache [REF-433].
- Implementation: Use only SSL communication.
- Implementation: Terminate the client session after each request.
- System Configuration: Turn all pages to non-cacheable.
References
Advisories
Packages
Other links
- gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/core/+/REL1_39/RELEASE-NOTES-1.39
- lists.debian.org/debian-lts-announce/2023/08/msg00029.html
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ONWHG…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZGK4N…
- phabricator.wikimedia.org/T285159
- debian.org/security/2023/dsa-5447
- mediawiki.org/wiki/Release_notes/1.35
- mediawiki.org/wiki/Release_notes/1.38
- mediawiki.org/wiki/Release_notes/1.39
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-w5fx-cx7f-6vr9 MediaWiki Denial of Service vulnerability | High | Also affects mediawiki/core |
| GHSA-c8wv-qwwc-6j73 MediaWiki allows a denial of service | Medium | Also affects mediawiki/core |
| GHSA-rqvj-fc2x-99q6 OATHAuth extension in MediaWiki is not implementing rate limit | High | Also affects mediawiki/core |
| GHSA-c4rj-wrmq-52rj MediaWiki Special:UserRights exposes the existence of hidden users | Medium | Also affects mediawiki/core |
| GHSA-h8qx-mj6v-2934 MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
| GHSA-4vr7-m8p8-434h MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
| GHSA-2f58-vf6g-6p8x MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
| GHSA-rj9p-8jxj-2ch4 MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
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