A vulnerability in the debug logging function of Cisco Duo Authentication Proxy could allow an authenticated, high-privileged, remote attacker to view sensitive information in a system log file. This vulnerability is due to insufficient masking of sensitive information before it is written to system log files. An attacker could exploit this vulnerability by accessing logs on an affected system, potentially revealing sensitive information that should be restricted.
Details
| Severity | Base Score | CVE |
|---|---|---|
| MEDIUM | 4.9 | CVE-2025-20345 |
Exploitation
To exploit this vulnerability, an attacker with high privileges must access the system logs of an affected Cisco Duo Authentication Proxy instance. By reviewing these logs, the attacker can find sensitive information that is not adequately masked, leading to potential data exposure.
Affected Products
- Cisco Duo Authentication Proxy: A service that provides two-factor authentication and secure access to applications.
Mitigation
To mitigate this vulnerability, it is recommended to ensure that sensitive information is properly masked before being logged. Regularly review and restrict access to log files to prevent unauthorized access by high-privileged users.