SB2024082859 - Remote code execution in Kingsoft WPS Office

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2024-7262)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient path validation in promecefpluginhost.exe. A remote attacker can trick the victim into opening a specially crafted spreadsheet document and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited in the wild.

2) Input validation error (CVE-ID: CVE-2024-7263)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient path validation in promecefpluginhost.exe. A remote attacker can trick the victim into opening a specially crafted spreadsheet document and execute arbitrary code on the system.

Remediation

Install update from vendor's website.

References

• https://www.wps.com/whatsnew/pc/20240422/
• https://www.welivesecurity.com/en/eset-research/analysis-of-two-arbitrary-code-execution-vulnerabilities-affecting-wps-office/