CVE Catalog

CVE-2001-1476

High
Published: Translated: NVD NIST

Summary

SSH versions before 2.0 with RC4 encryption and the 'disallow NULL passwords' option enabled make it easier for remote attackers to guess portions of user passwords by replaying user sessions with certain modifications.

Risk Assessment

Attackers may exploit this vulnerability to guess user passwords, potentially leading to unauthorized access to systems.

Recommendation

It is recommended to upgrade to a newer version of SSH that is not vulnerable to this issue and to consider using stronger authentication methods.

Related vulnerabilities

Original NVD description (English source)

SSH before 2.0, with RC4 encryption and the "disallow NULL passwords" option enabled, makes it easier for remote attackers to guess portions of user passwords by replaying user sessions with certain modifications, which trigger different messages depending on whether the guess is correct or not.

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