Denial of service via bodyless Content-Length requests
Published Apr 12, 2024 · Updated Aug 2, 2024
Denial of service in Traefik Proxy before 2.11.2 and 3.0.0-rc1 through 3.0.0-rc4 allows remote attackers to hang request handling. The HTTP entry point accepts a GET request that declares a Content-Length but sends no body, then waits indefinitely because request reading lacks an effective timeout. No authentication or user interaction is required, and stalled requests can interrupt proxy availability.
Summary
What happened
Denial of service in Traefik Proxy before 2.11.2 and 3.0.0-rc1 through 3.0.0-rc4 allows remote attackers to hang request handling. The HTTP entry point accepts a GET request that declares a Content-Length but sends no body, then waits indefinitely because request reading lacks an effective timeout. No authentication or user interaction is required, and stalled requests can interrupt proxy availability.
The record
- CVE
- CVE-2024-28869
- Published
- Apr 12, 2024
- Updated
- Aug 2, 2024
- Vendor
- Traefik Labs
- Product
- Traefik Proxy
- Classifications
- CWE-755, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 12, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.11.2
- Affected versionversion=0 <=3.0.0-rc3
- Affected versionversion=< 2.11.2
- Affected versionversion=>= 3.0.0-rc1, < 3.0.0-rc5
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
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
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Technologies
Your stack
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Your stack
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