CVE-2019-6453
HighPublic exploitmIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers.
Published Feb 18, 2019 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2019-6453 is a high-severity vulnerability (CVSS 8.1 v3) affecting Mirc.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 54% probability of exploitation in the next 30 days.
- Fixed versions are available, including Mirc 7.55.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3
8.1
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
54%
Higher than 99.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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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
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| MircMirc | See advisory | 7.55 |
Patched Releases
Mirc
7.55
Timeline
Publicly disclosed
Feb 18, 2019
Last updated
Nov 21, 2024
Weakness Type
- CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
References
- advisoryhttps://proofofcalc.com/advisories/20190218.txt
- exploithttps://github.com/proofofcalc/cve-2019-6453-poc
- exploithttps://proofofcalc.com/cve-2019-6453-mIRC/
- exploithttps://twitter.com/proofofcalc/status/1097518413143003136
- exploitExploitDB-46392
FAQ
Common Questions.
mIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers.
Affected: Mirc. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Mirc 7.55.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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