Privilege escalation via mounted build credentials
Published Mar 16, 2021 · Updated Aug 3, 2024
Privilege escalation in OpenShift Builder before 20210125201112-7901cb396121 allows remote authenticated users to overwrite images via builds. During a build, credentials outside the build context are automatically mounted into the image-under-construction container, where build code can read and reuse them to overwrite arbitrary internal-registry images. Exploitation requires an OpenShift user able to execute code in a build; consequences include privilege escalation and compromise of image confidentiality, integrity, and availability.
Summary
What happened
Privilege escalation in OpenShift Builder before 20210125201112-7901cb396121 allows remote authenticated users to overwrite images via builds. During a build, credentials outside the build context are automatically mounted into the image-under-construction container, where build code can read and reuse them to overwrite arbitrary internal-registry images. Exploitation requires an OpenShift user able to execute code in a build; consequences include privilege escalation and compromise of image confidentiality, integrity, and availability.
The record
- CVE
- CVE-2021-3344
- Published
- Mar 16, 2021
- Updated
- Aug 3, 2024
- Vendor
- Red Hat
- Product
- OpenShift Builder
- Classifications
- CWE-522, T1552.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 16, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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=before github.com/openshift/builder v0.0.0-20210125201112-7901cb396121
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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