Rule Category

PROTOCOL-TELNET -- Snort has detected traffic that may indicate the presence of the telnet protocol or vulnerabilities in the telnet protocol on the network.

Alert Message

PROTOCOL-TELNET login buffer non-evasive overflow attempt

Rule Explanation

This event is generated when an attempt is made to exploit a known buffer overflow vulnerability affecting "login" via Telnet. Impact: Serious. Unauthorized administrative access to the target host. Details: The login binary is used when establishing an interactive session on a system. It is used locally and by protocols that allow remote access. A buffer overflow condition exists in some versions of login that can be triggered by the manipulation of environment variables. This event is generated when an attempt is made to overflow login via telnet by manipulating the TTYPROMPT environment variable. Ease of Attack: Simple

What To Look For

No information provided

Known Usage

No public information

False Positives

No known false positives


Cisco Talos Intelligence Group

Rule Groups

No rule groups


Rule Vulnerability

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
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