Check Point Advisories

Adminer Server-Side Request Forgery (CVE-2021-21311)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-2305
Date Published:	22 Apr 2025
Severity:	High
Last Updated:	Tuesday 22 April, 2025
Source:
Industry Reference:	CVE-2021-21311
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Adminer 4.0.0 and later, prior to 4.7.9
Vulnerability Description	A server-side request forgery vulnerability exists in Adminer. Successful exploitation would allow attackers to create HTTP requests on behalf of the vulnerable server.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Adminer Server-Side Request Forgery (CVE-2021-21311) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Server Enforcement Violation.
Attack Information: Adminer Server-Side Request Forgery (CVE-2021-21311)