Rollback-token disclosure via cross-origin timing
Published Jan 27, 2020 · Updated Aug 6, 2024
Information disclosure in Scribunto allows remote attackers to recover rollback tokens through a crafted module and cross-origin timing. A Lua module preprocesses a transcludable special page, unstrips its protected HTML, and encodes token bits in deliberate response delays. Exploitation requires a browser visit by a user with rollback rights and either a malicious saved module or TemplateSandbox access to substitute one.
Summary
What happened
Information disclosure in Scribunto allows remote attackers to recover rollback tokens through a crafted module and cross-origin timing. A Lua module preprocesses a transcludable special page, unstrips its protected HTML, and encodes token bits in deliberate response delays. Exploitation requires a browser visit by a user with rollback rights and either a malicious saved module or TemplateSandbox access to substitute one.
The record
- CVE
- CVE-2014-9481
- Published
- Jan 27, 2020
- Updated
- Aug 6, 2024
- Vendor
- Wikimedia Foundation
- Product
- Scribunto
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 27, 2020CVE publishedPublication date reported by the CVE source.
- Aug 6, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=n/a
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- rollbacktokenleak.html timing-channel demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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