CVE-2025-52555— CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS
Quick assessment
Affected
ceph ceph
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.
Ceph是Ceph开源的一个文件存储平台。 Ceph 17.2.7版本、18.2.1至18.2.4版本和19.0.0至19.2.2版本存在安全漏洞，该漏洞源于非特权用户可通过chmod 777提升至root权限。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-52555
Vulnerability Information
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Vulnerability Title
CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS
Source: CVE Program / CVE List V5
Vulnerability Description
Ceph is a distributed object, block, and file storage platform. In versions 17.2.7, 18.2.1 through 18.2.4, and 19.0.0 through 19.2.2, an unprivileged user can escalate to root privileges in a ceph-fuse mounted CephFS by chmod 777 a directory owned by root to gain access. The result of this is that a user could read, write and execute to any directory owned by root as long as they chmod 777 it. This impacts confidentiality, integrity, and availability. It is patched in versions 17.2.8, 18.2.5, and 19.2.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Ceph 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ceph是Ceph开源的一个文件存储平台。 Ceph 17.2.7版本、18.2.1至18.2.4版本和19.0.0至19.2.2版本存在安全漏洞，该漏洞源于非特权用户可通过chmod 777提升至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
II. Public POCs for CVE-2025-52555
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V. Comments for CVE-2025-52555
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