Staying Safe in Times of Cyber Uncertainty
Check Point Advisories

Zimbra Collaboration CRLF Injection (CVE-2022-27924)

Check Point Reference: CPAI-2022-0357
Date Published: 20 Jul 2022
Severity: High
Last Updated: Wednesday 20 July, 2022
Industry Reference:CVE-2022-27924
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Zimbra Collaboration 8.8.15
Zimbra Collaboration 9.0
Vulnerability Description A CRLF injection vulnerability exists in Zimbra Collaboration. Successful exploitation of this vulnerability could allow a remote attacker to damage users 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 Zimbra Collaboration CRLF Injection (CVE-2022-27924) 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 Client Enforcement Violation.
Attack Information:  Zimbra Collaboration CRLF Injection (CVE-2022-27924)

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