Remote code execution in Kingsoft WPS Office



| Updated: 2022-03-30
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-24934
CWE-ID CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 WPS Office
Client/Desktop applications / Office applications

Vendor Kingsoft Corp.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Code Injection

EUVDB-ID: #VU61686

Risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2022-24934

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in wpsupdater.exe. A remote attacker can modify HKEY_CURRENT_USER in the registry 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

WPS Office: 11.2.0.10382

CPE2.3 External links

https://www.wps.com
https://decoded.avast.io/luigicamastra/operation-dragon-castling-apt-group-targeting-betting-companies/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

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.



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