CVE-2025-3528
Description
A flaw was found in the Mirror Registry. The quay-app container shipped as part of the Mirror Registry for OpenShift has write access to the /etc/passwd. This flaw allows a malicious actor with access to the container to modify the passwd file and elevate their privileges to the root user within that pod.
Statement
This issue was classified with and Important severity according to the severity ratings described at https://access.redhat.com/security/updates/classification. This rating was given because the attacker, when a successfully attack is performed, can elevate its privilege to the root user.
Mitigation
This issue can be mitigated by setting this line in each mirror registry systemd configurations:
--security-opt=no-new-privileges
This would prevent any privilege escalation until the issue is fixed.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.2 | N/A | 8.2 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | Required | N/A | Required |
| Scope | Changed | N/A | Changed |
| Confidentiality | High | N/A | High |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Application Data; Modify Application Data
Acknowledgements
Red Hat would like to thank Antony Di Scala and Mike Whale for reporting this issue.
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