Protection Mechanism Failure in Liferay Enterprise Portal - CVE-2021-29047
Published: May 11, 2021
Vulnerability identifier: #VU53058
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-29047
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Liferay Enterprise Portal
How to mitigate CVE-2021-29047
Install updates from vendor's website.
Liferay Enterprise Portal - update to 7.3.6 ga7