Remote code execution in Atlassian Companion App for MacOS



Published: 2023-12-06 | Updated: 2024-06-21
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-22524
CWE-ID CWE-284
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Atlassian Companion App for MacOS
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor Atlassian

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Improper access control

EUVDB-ID: #VU83916

Risk: High

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-22524

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

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

The vulnerability exists due to improper access restrictions. A remote attacker can trick the victim to visit a specially crafted website and utilize WebSockets to bypass Atlassian Companion’s blocklist and MacOS Gatekeeper to allow the execution of code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Atlassian Companion App for MacOS: 1.0.0 - 1.6.1

CPE2.3 External links

http://jira.atlassian.com/browse/CONFSERVER-93453
http://confluence.atlassian.com/security/cve-2023-22524-rce-vulnerability-in-atlassian-companion-app-for-macos-1319249492.html
http://jira.atlassian.com/browse/CONFSERVER-93518


Q & A

Can this vulnerability be exploited remotely?

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

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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