CVE-2025-57849— Fuse: privilege escalation via excessive /etc/passwd permissions
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
缺省权限不正确
Source: NVD (National Vulnerability Database)
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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- 2391100 – (CVE-2025-57849) CVE-2025-57849 fuse: privilege escalation via excessive /etc/passwd permissionsissue-trackingx_refsource_REDHAT
- https://nvd.nist.gov/vuln/detail/CVE-2025-57849
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 |
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