#VU76580 Incorrect Regular Expression in Liferay Enterprise Portal and Liferay DXP - CVE-2023-33950

Vulnerability identifier: #VU76580

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-33950

CWE-ID: CWE-185

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Liferay Enterprise Portal
Web applications / CMS
Liferay DXP
Web applications / CMS

Vendor: Liferay

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions. A remote user can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Liferay Enterprise Portal: 7.4.3.48 ga48 - 7.4.3.76 ga76

Liferay DXP: before 7.4

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External links
https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/cve-2023-33950

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.