Check Point Advisories

Nextcloud Calendar SMTP Command Injection (CVE-2022-24838)

Check Point Reference: CPAI-2022-2049
Date Published: 14 Apr 2024
Severity: Critical
Last Updated: Sunday 14 April, 2024
Industry Reference:CVE-2022-24838
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Nextcloud Calendar prior to 3.2.2
Vulnerability Description An SMTP command injection vulnerability exists in Nextcloud Calendar. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary commands on the affected system.

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

  1. In the IPS tab, click Protections and find the Nextcloud Calendar SMTP Command Injection (CVE-2022-24838) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Nextcloud Calendar SMTP Command Injection (CVE-2022-24838)

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