PROTOCOL-TELNET -- Snort has detected traffic that may indicate the presence of the telnet protocol or vulnerabilities in the telnet protocol on the network.
PROTOCOL-TELNET login buffer non-evasive overflow attempt
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
No public information
No known false positives
Cisco Talos Intelligence Group
Tactic:
Technique:
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org
CVE-2001-0797Buffer overflow in login in various System V based operating systems allows remote attackers to execute arbitrary commands via a large number of arguments through services such as telnet and rlogin. |
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