CVE-2025-52555
Description
A vulnerability in Ceph was discovered whereby an unprivileged user could change the permissions of a directory owned by the root user, gaining access to the targeted directory. The non-privileged user can escalate privileges to root in a CephFS mounted with ceph-fuse by applying chmod 777 (read, write, and execute for all users) to any directory owned by root. This allows the user to read, write, and execute to that directory even if they were not the original owner. The vulnerability could potentially allow a user to gain unauthorized access or modify critical system data.
Mitigation
Red Hat Product Security does not have any recommended mitigations at this time. Please update as patched versions become available.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.5 | N/A | N/A |
| Attack Vector | Adjacent Network | N/A | N/A |
| Attack Complexity | High | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Changed | N/A | N/A |
| Confidentiality | High | N/A | N/A |
| Integrity Impact | Low | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Understanding the Weakness (CWE)
Access Control,Confidentiality
Technical Impact: Gain Privileges or Assume Identity; Read Application Data; Read Files or Directories
An attacker may be able to access resources with the elevated privilege that could not be accessed with the attacker's original privileges. This is particularly likely in conjunction with another flaw, such as a buffer overflow.
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