Openshift-ai: privilege escalation via excessive /etc/passwd permissions

6.4 CVSS

Vulnerability Description

A container privilege escalation flaw was found in KServe ModelMesh container images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Antony Di Scala and Michael Whale for reporting this issue.

References

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Affected Vendor

Red Hat

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Affected Software

Red Hat OpenShift AI 2.16, Red Hat OpenShift AI 2.19, Red Hat OpenShift AI 2.21, Red Hat OpenShift AI 2.22, Red Hat OpenShift AI 2.24

Vulnerable Versions:

sha256:97e2bd9b587f08e135a9aeb9b3e0dc6eafa1a9bdacbb5ecb681ce9bd5aa37fc9, sha256:53ac36baa374159b9065c718a9ede821bbb61d9ebe9502b2243e0a9f7aca0d16, sha256:687c8eeed55f021ecaab1307f0e88b5b16d91f72d63b3d7168d7bbee90e8947b, sha256:1709fa3c79aad4ba7eb9be8299949396092c8e20210124e0c0936385bc04e839, sha256:92629b1462ca2ed121dd2f3069a005d78e00e1344d330d6a8710f53ec58b74b8