Check Point Advisories

OneDev Arbitrary File Write (CVE-2021-21251)

Check Point Reference: CPAI-2021-2320
Date Published: 7 May 2025
Severity: High
Last Updated: Wednesday 07 May, 2025
Source:
Industry Reference:CVE-2021-21251
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? OneDev prior to 4.0.3
Vulnerability Description An arbitrary file write vulnerability exists in OneDev. Successful exploitation of this vulnerability could result in code execution 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 OneDev Arbitrary File Write (CVE-2021-21251) 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:  OneDev Arbitrary File Write (CVE-2021-21251)

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