Authenticated authorization bypass via zero-length body forwarding
Published Jul 24, 2024 · Updated Oct 13, 2024
Incorrect authorization in Moby allows remote authenticated users to bypass AuthZ plugin decisions through crafted Engine API requests. When Content-Length is zero, the daemon strips the request or response body before forwarding it to a body-inspecting AuthZ plugin, so the plugin evaluates incomplete data. The flaw affects deployments that use AuthZ plugins for body-based access decisions and grants unauthorized Docker actions, including privilege escalation.
Summary
What happened
Incorrect authorization in Moby allows remote authenticated users to bypass AuthZ plugin decisions through crafted Engine API requests. When Content-Length is zero, the daemon strips the request or response body before forwarding it to a body-inspecting AuthZ plugin, so the plugin evaluates incomplete data. The flaw affects deployments that use AuthZ plugins for body-based access decisions and grants unauthorized Docker actions, including privilege escalation.
The record
- CVE
- CVE-2024-41110
- Published
- Jul 24, 2024
- Updated
- Oct 13, 2024
- Vendor
- Moby Project
- Product
- Moby
- Classifications
- CWE-863, CWE-187, CWE-444, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 24, 2024CVE publishedPublication date reported by the CVE source.
- Oct 13, 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=19.0.0 <=19.03.15
- Affected versionversion=>= 19.03.0, <= 19.03.15
- Affected versionversion=>= 20.0.0, <= 20.10.27
- Affected versionversion=20.0.0 <=20.10.27
- Affected versionversion=>= 23.0.0, <= 23.0.14
- Affected versionversion=23.0.0 <=23.0.14
- Affected versionversion=>= 24.0.0, <= 24.0.9
- Affected versionversion=24.0.0 <=24.0.9
- Affected versionversion=>= 25.0.0, <= 25.0.5
- Affected versionversion=25.0.0 <=25.0.5
- Affected versionversion=>= 26.0.0, <= 26.0.2
- Affected versionversion=26.0.0 <=26.0.2
- Affected versionversion=>= 26.1.0, <= 26.1.14
- Affected versionversion=26.1.0 <=26.1.14
- Affected versionversion=>= 27.0.0, <= 27.0.3
- Affected versionversion=27.0.0 <=27.0.3
- Affected versionversion== 27.1.0
- Affected versionversion=27.1.0
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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