VDB-130984 · CVE-2019-6453 · Qualys 91517

mIRC up to 7.54 URI Protocol Argument command injection

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

A vulnerability was found in mIRC up to 7.54 (Chat Software). It has been declared as critical. This vulnerability affects an unknown function of the component URI Protocol Handler. The manipulation as part of a Argument leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-77. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 bug was discovered 02/18/2019. The weakness was shared 02/18/2019 (Website). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2019-6453 since 01/16/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/11/2020).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 91517 (mIRC Remote Code Execution Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-77
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys Name: 🔍

Threat Intelligenceinfoedit

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

01/16/2019 🔍
02/18/2019 +33 days 🔍
02/18/2019 +0 days 🔍
02/19/2019 +1 days 🔍
05/11/2020 +447 days 🔍

Sourcesinfoedit

Advisory: exploit-db.com
Status: Not defined

CVE: CVE-2019-6453 (🔍)

Entryinfoedit

Created: 02/19/2019 08:11 AM
Updated: 05/11/2020 09:52 AM
Changes: (2) vulnerability_discoverydate advisory_url
Complete: 🔍

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