Webhook token disclosure via timing comparison
Published Oct 25, 2023 · Updated Feb 13, 2025
Timing side channel in Jenkins Gogs Plugin 1.0.15 and earlier allows remote attackers to obtain a valid webhook token. The webhook endpoint compares the provided and expected token with a non-constant-time equality operation, exposing response-time differences. An unauthenticated network attacker must collect enough timing samples for statistical analysis; a recovered token defeats the webhook token check.
Summary
What happened
Timing side channel in Jenkins Gogs Plugin 1.0.15 and earlier allows remote attackers to obtain a valid webhook token. The webhook endpoint compares the provided and expected token with a non-constant-time equality operation, exposing response-time differences. An unauthenticated network attacker must collect enough timing samples for statistical analysis; a recovered token defeats the webhook token check.
The record
- CVE
- CVE-2023-46657
- Published
- Oct 25, 2023
- Updated
- Feb 13, 2025
- Vendor
- Jenkins Project
- Product
- Jenkins Gogs Plugin
- Classifications
- CWE-208, CWE-697, T1110.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 25, 2023CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.0.15
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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