Ssh-2.0-cisco-1.25 Vulnerability [extra Quality]

Because this version is dated, it is frequently flagged by scanners because it supports weak cryptographic algorithms or is susceptible to protocol-level attacks discovered in recent years. Top Vulnerabilities Linked to This Version

First, you must know which of your devices are running the SSH-2.0-Cisco-1.25 banner or similar vulnerable implementations. Network scanners and configuration management tools can help.

In a penetration test or real attack, glimpsing SSH-2.0-Cisco-1.25 is gold. Here is how an attacker would proceed: ssh-2.0-cisco-1.25 vulnerability

On Cisco ASA devices that reported similar version strings (often overlapping with 1.25 ), there was a vulnerability where processing specific SSH packets would not free memory correctly. Over days or weeks, the device would exhaust memory and stop passing traffic. This required a reboot to resolve.

While you cannot easily alter the core protocol string ( SSH-2.0-Cisco-1.25 ) without a software upgrade, you can disable standard hardware and software banners to prevent additional information leakage: Because this version is dated, it is frequently

Ensure the device is configured to only allow SSH version 2 and that the server-side RSA keys are properly managed. 6. Conclusion

While the SSH-2.0-Cisco-1.25 string is often associated with legacy code, the risk is not confined to the past. Cisco has disclosed several high-severity vulnerabilities in recent years that affect modern products and their SSH implementations. In a penetration test or real attack, glimpsing SSH-2

user wants a long article about "ssh-2.0-cisco-1.25 vulnerability". This seems to refer to a banner or version string from a Cisco SSH server. I need to search for relevant vulnerabilities. I'll follow the search plan. search results show that "SSH-2.0-Cisco-1.25" is primarily an identifier for the SSH server on some Cisco devices, which appears in banners and documentation, not necessarily a specific vulnerability with a dedicated CVE. However, there are references to a PuTTY issue, a bug report, and a scanning result. There are also general Cisco SSH vulnerabilities. The user likely wants a comprehensive article about the potential security implications and known issues related to this version string. I'll need to structure an article that covers what this version string is, the nature of the SSH server, any associated vulnerabilities or implementation quirks, how it relates to older SSH versions or configurations, and how it might be used in reconnaissance. I'll also include mitigation strategies and references. I'll use the search results to gather details. Now I'll write the article.Keywords: SSH-2.0-Cisco-1.25 vulnerability, Cisco SSH banner, Cisco SSH security**

: Disable SSH version 1 (SSHv1) support if enabled, and enforce the use of SSH version 2 (SSHv2) to avoid a class of legacy protocol attacks.