CVE-2025-57853
Last modified
CVE-2025-57853 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. A container privilege escalation flaw was found in certain Web Terminal images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
A container privilege escalation flaw was found in certain Web Terminal 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.
Metrics
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Web Terminal | All versions |
References
- https://access.redhat.com/security/cve/CVE-2025-57853Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2391106Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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