Vulnerability identifier: #VU25633

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-8894

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MISP
Web applications / CMS

Vendor: misp-project.org

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in app/Controller/ThreadsController.php and app/Model/Thread.php scripts. A remote authenticated attacker can bypass implemented security restrictions and view otherwise restricted discussions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MISP: 2.4.0 - 2.4.120

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External links
http://github.com/MISP/MISP/commit/9400b8bc8699435d84508e598aca98a31affd77c
http://github.com/MISP/MISP/compare/v2.4.120...v2.4.121

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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.