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CVE-2025-57849— Fuse: privilege escalation via excessive /etc/passwd permissions

Quick assessment

Affected
Red Hat Red Hat Fuse 7
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 Fuse是美国红帽（Red Hat）公司的一套基于Apache Camel的开源分布式集成平台。该平台能够提供标准化的方法、基础结构和工具集成服务、微服务和应用程序组件。 Red Hat Fuse存在安全漏洞，该漏洞源于构建时创建的/etc/passwd文件具有组可写权限，可能导致攻击者在容器内执行命令并修改该文件，从而获得完整的root权限。

CVSS 6.4 · Medium EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1136.001 · Local Account
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I. Basic Information for CVE-2025-57849

Vulnerability Information
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Vulnerability Title
Fuse: privilege escalation via excessive /etc/passwd permissions
Source: CVE Program / CVE List V5
Vulnerability Description
A container privilege escalation flaw was found in certain Fuse 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 Fuse 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Fuse是美国红帽（Red Hat）公司的一套基于Apache Camel的开源分布式集成平台。该平台能够提供标准化的方法、基础结构和工具集成服务、微服务和应用程序组件。 Red Hat Fuse存在安全漏洞，该漏洞源于构建时创建的/etc/passwd文件具有组可写权限，可能导致攻击者在容器内执行命令并修改该文件，从而获得完整的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 Red Hat Fuse 7 - cpe:/a:redhat:jboss_fuse:7
Red Hat Red Hat Fuse 7 - cpe:/a:redhat:jboss_fuse:7
Red Hat Red Hat Fuse 7 - cpe:/a:redhat:jboss_fuse:7
Red Hat Red Hat Fuse 7 - cpe:/a:redhat:jboss_fuse:7
Red Hat Red Hat Fuse 7 - cpe:/a:redhat:jboss_fuse:7
Red Hat Red Hat Fuse 7 - cpe:/a:redhat:jboss_fuse:7

II. Public POCs for CVE-2025-57849

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III. Intelligence Information for CVE-2025-57849

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Vendor Advisories for CVE-2025-57849 (2)

Same Patch Batch · Red Hat · 2026-03-13 · 4 CVEs total

CVE-2026-4111 7.5 HIGH Libarchive: infinite loop denial of service in rar5 decompression via archive_read_data()
CVE-2026-4105 6.7 MEDIUM Systemd: systemd: privilege escalation via improper access control in registermachine d-bu
CVE-2025-8766 6.4 MEDIUM Noobaa-core: excessive permissions of /etc could lead to escalation of privilege in the no

IV. Related Vulnerabilities

Same product: Red Hat Fuse 7
Same vendor: Red Hat
Same weakness: CWE-276

V. Comments for CVE-2025-57849

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