Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-57851— Mce: privilege escalation via excessive /etc/passwd permissions

Quick assessment

Affected
Red Hat Multicluster Engine for Kubernetes
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Red Hat Multicluster Engine for Kubernetes是美国红帽（Red Hat）公司的一个用于管理Kubernetes或OpenShift集群的软件。 Red Hat Multicluster Engine for Kubernetes存在安全漏洞，该漏洞源于构建过程中/etc/passwd文件被设置为组可写权限，可能导致攻击者在容器内获得完整root权限。

CVSS 6.4 · Medium EPSS 0.11% · P1

Affected Version Matrix 3

VendorProduct Version RangeStatus
Red Hat Multicluster Engine for Kubernetes any affected
any affected
any affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-57851

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Mce: privilege escalation via excessive /etc/passwd permissions
Source: CVE Program / CVE List V5
Vulnerability Description
A container privilege escalation flaw was found in certain Multicluster Engine for Kubernetes 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Multicluster Engine for Kubernetes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Multicluster Engine for Kubernetes是美国红帽（Red Hat）公司的一个用于管理Kubernetes或OpenShift集群的软件。 Red Hat Multicluster Engine for Kubernetes存在安全漏洞，该漏洞源于构建过程中/etc/passwd文件被设置为组可写权限，可能导致攻击者在容器内获得完整root权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Multicluster Engine for Kubernetes - cpe:/a:redhat:multicluster_engine
Red Hat Multicluster Engine for Kubernetes - cpe:/a:redhat:multicluster_engine
Red Hat Multicluster Engine for Kubernetes - cpe:/a:redhat:multicluster_engine

II. Public POCs for CVE-2025-57851

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-57851

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-57851 (1)

Same Patch Batch · Red Hat · 2026-04-08 · 10 CVEs total

CVE-2026-32589 7.4 HIGH Mirror-registry: quay: insecure direct object reference in blobupload
CVE-2026-32590 7.1 HIGH Mirror-registry: remote code execution using pickle deserialization
CVE-2026-2377 6.5 MEDIUM Mirror-registry: quay: quay: server-side request forgery via log export functionality
CVE-2025-57847 6.4 MEDIUM Ansible-automation-platform: privilege escalation via excessive group writable /etc/passwd
CVE-2025-57854 6.4 MEDIUM Osus-operator: privilege escalation via excessive /etc/passwd permissions
CVE-2025-57853 6.4 MEDIUM Web-terminal: privilege escalation via excessive /etc/passwd permissions
CVE-2025-58713 6.4 MEDIUM Rhpam: privilege escalation via excessive /etc/passwd permissions
CVE-2025-14243 5.3 MEDIUM Mirror-registry: openshift mirror registry: user enumeration via authentication error mess
CVE-2026-32591 5.2 MEDIUM Mirror-registry: quay: server-side request forgery in proxy cache upstream registry config

IV. Related Vulnerabilities

Same product: Multicluster Engine for Kubernetes
Same vendor: Red Hat
Same weakness: CWE-276

V. Comments for CVE-2025-57851

No comments yet

Leave a comment