SB2019022010 - Remote code execution in mIRC
Published: February 20, 2019
Security Bulletin ID
SB2019022010
CSH 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 vulnerability.
1) Command injection (CVE-ID: CVE-2019-6453)
CWE-ID: CWE-77 - Command injection
CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The weakness exists due to argument injection through custom URI protocol handlers. A remote attacker can trick the victim into visiting a specially crafted web-page and specify an irc:// URI that loads an arbitrary .ini file from a UNC share pathname to inject arbitrary commands and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.