HTTP: mIRC URI Handler Remote Code Execution

This signature detects attempts to exploit a known vulnerability against mIRC URI handler. A successful attack can lead to arbitrary code execution.

Extended Description

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).

Affected Products

Mirc mirc

Short Name
HTTP:MIRC-URI-HANDLER-RCE
Severity
Major
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
CVE-2019-6453 Code Execution Handler Remote URI mIRC
Release Date
06/03/2019
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
3337
False Positive
Unknown
Vendors

Mirc

CVSS Score

6.8

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