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CVE-2025-1390— pam_cap: Fix potential configuration parsing error

Quick assessment

Affected
OpenAnolis Anolis OS
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.

libcap是Michael Kerrisk个人开发者的一个网络数据包捕获函数包。 libcap存在安全漏洞，该漏洞源于pam_cap.so组名存在解析错误，会导致非授权用户获得权限提升。

CVSS 6.1 · Medium EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-1390

Vulnerability Information
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Vulnerability Title
pam_cap: Fix potential configuration parsing error
Source: CVE Program / CVE List V5
Vulnerability Description
The PAM module pam_cap.so of libcap configuration supports group names starting with “@”, during actual parsing, configurations not starting with “@” are incorrectly recognized as group names. This may result in nonintended users being granted an inherited capability set, potentially leading to security risks. Attackers can exploit this vulnerability to achieve local privilege escalation on systems where /etc/security/capability.conf is used to configure user inherited privileges by constructing specific usernames.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
libcap 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libcap是Michael Kerrisk个人开发者的一个网络数据包捕获函数包。 libcap存在安全漏洞，该漏洞源于pam_cap.so组名存在解析错误，会导致非授权用户获得权限提升。
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
OpenAnolis Anolis OS 2.73;0 -

II. Public POCs for CVE-2025-1390

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III. Intelligence Information for CVE-2025-1390

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Patches & Fixes for CVE-2025-1390 (1)

IV. Related Vulnerabilities

Same product: Anolis OS
Same vendor: OpenAnolis
Same weakness: CWE-284

V. Comments for CVE-2025-1390

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