CVE-2019-6453

EPSS 71.8%

Vexday Risk Score

47Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Popular PoC on GitHub (49 stars) — exploitation code widely available.

CVSS —EPSS 71.8%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

18 Feb 2019Public PoC

18 Feb 2019Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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

n/a · n/a

public PoCs found — 4

githubgithub.com/proofofcalc/cve-2019-6453-poc★ 49 githubgithub.com/andripwn/mIRC-CVE-2019-6453★ 1 cve_referencewww.exploit-db.com/exploits/46392/unverified exploitdbwww.exploit-db.com/exploits/46392unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://github.com/proofofcalc/cve-2019-6453-poc https://proofofcalc.com/advisories/20190218.txt https://proofofcalc.com/cve-2019-6453-mIRC/https://twitter.com/proofofcalc/status/1097518413143003136 https://www.exploit-db.com/exploits/46392/https://www.mirc.com/news.html