Vulnerability identifier: #VU47733

Vulnerability risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: N/A

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Internet Security
Client/Desktop applications / Antivirus software/Personal firewalls
Kingsoft Antivirus
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Kingsoft Corp.

Description

The vulnerability allows a local user to escalate privileges on the target system.

The vulnerability exists due to a boundary error when processing IOCTL 0x80030004 or 0x80030008 by the KWatch3.sys (internet security) kernel driver. A local user can trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Internet Security: All versions

Kingsoft Antivirus: All versions

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External links
http://srcincite.io/pocs/src-2017-0029.py.txt

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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.