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CVE-2025-23013

Quick assessment

Affected
Yubico pam-u2f
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.

Yubico pam-u2f是Yubico公司的一个用于 U2F 和 FIDO2 的可插拔身份验证模块。 Yubico pam-u2f 1.3.1之前版本存在安全漏洞，该漏洞源于允许在某些配置中绕过身份验证，可能会发生本地特权提升。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.40% · P33

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2025-23013

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Yubico pam-u2f before 1.3.1, local privilege escalation can sometimes occur. This product implements a Pluggable Authentication Module (PAM) that can be deployed to support authentication using a YubiKey or other FIDO compliant authenticators on macOS or Linux. This software package has an issue that allows for an authentication bypass in some configurations. An attacker would require the ability to access the system as an unprivileged user. Depending on the configuration, the attacker may also need to know the user's password.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未预期的状态编码或返回值
Source: CVE Program / CVE List V5
Vulnerability Title
Yubico pam-u2f 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yubico pam-u2f是Yubico公司的一个用于 U2F 和 FIDO2 的可插拔身份验证模块。 Yubico pam-u2f 1.3.1之前版本存在安全漏洞，该漏洞源于允许在某些配置中绕过身份验证，可能会发生本地特权提升。
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
Yubico pam-u2f 0 ~ 1.3.1 -

II. Public POCs for CVE-2025-23013

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III. Intelligence Information for CVE-2025-23013

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Vendor Advisories for CVE-2025-23013 (1)

IV. Related Vulnerabilities

Same vendor: Yubico
Same weakness: CWE-394

V. Comments for CVE-2025-23013

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