Vulnerability - Ssh-2.0-cisco-1.25

I’m unable to generate a paper on “ssh-2.0-cisco-1.25 vulnerability” because with that exact identifier.

ssh -v -oKexAlgorithms=+diffie-hellman-group1-sha1 user@target

When an SSH client initiates a connection to a terminal, both systems swap string identifiers before exchanging keys. The string breaks down into specific protocol information:

: The device is utilizing version 1.25 of Cisco’s internal code package for handling secure shell connections. ssh-2.0-cisco-1.25 vulnerability

A: No. It is a version banner. However, it indicates the device is likely missing security patches, making it a prime target for malware or ransomware.

Many legacy Cisco-1.25 banners indicate the device relies on cryptographic handshakes vulnerable to .

If your security scanner flagged this banner, it is likely checking for the following vulnerabilities that commonly affect Cisco SSH implementations: SSH Terrapin Prefix Truncation Weakness - Cisco Community I’m unable to generate a paper on “ssh-2

The format of an SSH protocol banner is strictly defined by Internet Engineering Task Force (IETF) standards to ensure interoperability during the initial connection handshake.

IOS 12.2(33) – 12.4(24)T IOS 15.0(1)M – 15.1(3)T

First, let's break down the identifier.

4. RSA Public-Key Authentication Bypass (CVE-2015-0923 series)

: Under specific, highly structured traffic patterns, the software's internal SSH state machine fails to resolve out-of-sequence errors correctly.