Vulnerability identifier: #VU53058

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29047

CWE-ID: CWE-693

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Liferay Enterprise Portal
Web applications / CMS

Vendor: Liferay

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect SimpleCaptcha implementation, which does not invalidate CAPTCHA answers after they were used. A remote attacker can reuse the same CAPTCHA answers, bypass SimpleCaptcha protection and repeatedly perform actions with the web application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Liferay Enterprise Portal: 7.3.4 ga5 - 7.3.5 ga6

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External links
http://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120743467

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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.