mIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers. The attacker can specify an irc:// URI that loads an arbitrary .ini file from a UNC share pathname. Exploitation depends on browser-specific URI handling (Chrome is not exploitable).
The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.
| Link | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46392/ | exploit vdb entry third party advisory |
| https://proofofcalc.com/advisories/20190218.txt | third party advisory |
| https://github.com/proofofcalc/cve-2019-6453-poc | third party advisory exploit |
| https://www.mirc.com/news.html | product |
| https://proofofcalc.com/cve-2019-6453-mIRC/ | third party advisory exploit |
| https://twitter.com/proofofcalc/status/1097518413143003136 | third party advisory exploit |