SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.
SERVER-WEBAPP RoundCube WebMail IMAP command injection attempt
This event is generated when an attempt to exploit an IMAP command injection in RoundCube Webmail is detected.
Attempted User Privilege Gain
What To Look For
This rule alerts on an attempt to exploit RoundCube webmail server
No public information
No known false positives
Cisco Talos Intelligence Group
MITRE ATT&CK Framework
Tactic: Privilege Escalation
Technique: Elevated Execution with Prompt
For reference, see the MITRE ATT&CK vulnerability types here:
Command Injection attacks target applications that allow unsafe user-supplied input. Attackers transmit this input via forms, cookies, HTTP headers, etc. and exploit the applications permissions to execute system commands without injecting code.
CVE Additional Information
CVE-2018-9846In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled "_uid" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism.
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