CVE Catalog

CVE-2003-1562

High
Published: Translated: NVD NIST

Summary

In OpenSSH 3.6.1p2 and earlier, when PermitRootLogin is disabled and PAM keyboard-interactive authentication is used, there is no delay after a root login attempt with the correct password. This makes it easier for remote attackers to use timing differences to determine if the password step of a multi-step authentication is successful.

Risk Assessment

The lack of delay after a login attempt may allow attackers to perform brute force or timing attacks, increasing the risk of unauthorized access to the system.

Recommendation

It is recommended to update OpenSSH to the latest version to mitigate this vulnerability and consider implementing a delay after login attempts.

Related vulnerabilities

Original NVD description (English source)

sshd in OpenSSH 3.6.1p2 and earlier, when PermitRootLogin is disabled and using PAM keyboard-interactive authentication, does not insert a delay after a root login attempt with the correct password, which makes it easier for remote attackers to use timing differences to determine if the password step of a multi-step authentication is successful, a different vulnerability than CVE-2003-0190.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS