#VU50126 Input validation error in Vir.IT eXplorer - CVE-2017-16234

Vulnerability identifier: #VU50126

Vulnerability risk: Medium

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2017-16234

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Vir.IT eXplorer
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: TG Soft

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the Viragtlt.sys and Viraglt64.sys system drivers. A local user can request the 0x82730048 IOTCL and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vir.IT eXplorer: 8.5.39

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External links
https://www.greyhathacker.net/?p=990

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.