TELNET: Brute Force Login Attempt
This protocol anomaly detects multiple login failures within a short period of time between a unique pair of hosts. This typically indicates either a user or a script repeatedly trying to login to a server in order to guess the username and/or the password. The number of such login failures can be configured in the Sensor Settings Rulebase of the Security Policy.
Extended Description
Multiple login failures within a short period could indicate that a brute force password guessing attack is taking place or has taken place.
Short Name
TELNET:FAILURE:BRUTE-FORCE
Severity
Major
Recommended
False
Recommended Action
None
Category
TELNET
Keywords
brute force telnet
Release Date
01/27/2004
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3324
False Positive
Unknown