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The vulnerability allows for potential privilege escalation within a container, but OpenShift's default, multi-layered security posture effectively mitigates this risk. \nThe primary controls include the default Security Context Constraints (SCC), which severely limit a container's permissions from the start, and SELinux, which enforces mandatory access control to ensure strict isolation. While other container runtime environments may have different controls available and require case-by-case analysis, OpenShift's built-in defenses are designed to prevent this type of attack.\nOut of Box RHEL configuration isolates a single process inside a container. Unless multiple processes are packaged inside a single container, that defeats the principle behind containerization, this bug can not be used to meaningfully escalate privileges.\nAlso, RHEL, and any common linux distributions do NOT add any additional users to the root group. The presence of the root group is strictly due to conformance with POSIX permission management requirements and can be considered to be an artifact of filesystem permission limitations.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 96.0, "source": "matching"}]}, "original": {"product": "Red Hat Ansible Automation Platform 2", "source": "cna", "vendor": "Red Hat"}, "product": "ansible_automation_platform", "vendor": "redhat"}], "analysis": {"en": {"generated_at": "2026-04-08T15:21:34.729020+00:00", "value": {"mitigation_remediation": ["Apply the vendor\u2019s security patch or upgrade to a fixed container image once it is released.", "Verify that the /etc/passwd file inside the container has permissions 644 and is not group\u2011writable; adjust the build process if necessary.", "Limit the membership of the root group within the container and enforce least\u2011privilege for all container users.", "Monitor container logs for unauthorized modifications to system files such as /etc/passwd.", "Consult Red\u202fHat support and review security advisories for updates."], "summary": {"action": "Immediate Patch", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "The vulnerability applies to Red\u202fHat Ansible Automation Platform version\u202f2 container images. No specific patch or version numbers are provided in the data, so any impacted image that was built with the described permission setting is at risk.", "description_and_impact": "The flaw arises because the /etc/passwd file inside certain Red\u202fHat Ansible Automation Platform 2 container images is created with group\u2011writable permissions during build. When an attacker can execute commands inside the container, even as a non\u2011root user, and is a member of the root group, the attacker can modify the passwd file. By adding a new entry with an arbitrary UID, including UID 0, the attacker gains full root privileges inside the container. This is a classic example of unauthorized privilege escalation, classified as CWE\u2011276.", "risk_and_exploitability": "The CVSS score of 6.4 indicates moderate severity. EPSS information is unavailable, and the vulnerability is not listed in the CISA KEV catalog. The likely attack vector is an attacker who has the ability to run commands inside the affected container and is a member of the root group. The attacker can exploit the permission error to edit /etc/passwd and add a privileged user, leading to full container root access. The risk is therefore significant for deployments where containers run with group root access or where users can elevate their privileges within the container runtime."}}}}, "created": "2026-04-08T19:39:29.453687+00:00", "updated": "2026-04-09T08:18:54.196378+00:00", "vendors": ["redhat", "redhat$PRODUCT$ansible_automation_platform"]}