CVE Catalog

CVE-2001-1473

High
Published: Translated: NVD NIST

Summary

The SSH-1 protocol allows remote servers to conduct man-in-the-middle attacks and replay a client challenge response to a target server by creating a Session ID that matches the target's Session ID, but uses a weaker public key pair.

Risk Assessment

Organizations are at risk of attacks that can lead to session hijacking and unauthorized access to data. This allows attackers to impersonate trusted servers.

Recommendation

It is recommended to avoid using the SSH-1 protocol and to transition to newer versions of the SSH protocol that offer better security. Additionally, public keys should be monitored and updated to ensure their cryptographic strength.

Related vulnerabilities

Original NVD description (English source)

The SSH-1 protocol allows remote servers to conduct man-in-the-middle attacks and replay a client challenge response to a target server by creating a Session ID that matches the Session ID of the target, but which uses a public key pair that is weaker than the target's public key, which allows the attacker to compute the corresponding private key and use the target's Session ID with the compromised key pair to masquerade as the target.

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