SB2024061723 - Code injection in Nextcloud Desktop Client for macOS

Description

This security bulletin contains information about 1 vulnerability.

1) Code Injection (CVE-ID: CVE-2024-37885)

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

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

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

The vulnerability exists due to improper input validation when starting the client with DYLD_INSERT_LIBRARIES set in the enviroment. A remote administrator can send a specially crafted request and execute arbitrary code on the target system.

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

Remediation

Install update from vendor's website.

References

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4mf7-v63m-99p7
• https://github.com/nextcloud/desktop/pull/6378
• https://hackerone.com/reports/2307625