SB2017051703 - Command injection in SquirrelMail
Published: May 17, 2017
Security Bulletin ID
SB2017051703
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Command injection (CVE-ID: CVE-2017-7692)
The vulnerability allows a remote authenticated attacker to execute arbitrary commands on a targeted system.The weakness exists due to insufficient escaping of user-supplied input by the escapeshellcmd() when configured with Sendmail as the email delivery transport method. A remote attacker can upload a specially crafted sendmail.cf file as an email attachment that is mishandled in a popen call, trigger vulnerability in the Deliver_SendMail.class.php with the initStream function and execute arbitrary shell commands to conduct further attacks.
Successful exploitation of the vulnerability may result in full system compromise.
Remediation
Install update from vendor's website.