#VU61398 Stack-based buffer overflow in KINGSOFT Internet Security 9 Plus - CVE-2022-25949

Vulnerability identifier: #VU61398

Vulnerability risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-25949

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
KINGSOFT Internet Security 9 Plus
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Kingsoft Corp.

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A local user can trigger stack-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

KINGSOFT Internet Security 9 Plus: 2010.06.23.247

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External links
https://jvn.jp/en/jp/JVN21234459/index.html
https://support.kingsoft.jp/support-info/weakness.html

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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.