CVE-2021-34599
7.4 · HIGHOverview
CVE-2021-34599 is a high-severity vulnerability affecting codesys git. It was published on December 1, 2021 and has a CVSS 3.1 base score of 7.4 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Affected versions of CODESYS Git in Versions prior to V1.1.0.0 lack certificate validation in HTTPS handshakes. CODESYS Git does not implement certificate validation by default, so it does not verify that the server provides a valid and trusted HTTPS certificate. Since the certificate of the server to which the connection is made is not properly verified, the server connection is vulnerable to a man-in-the-middle attack.
Remediation
Check the references section for vendor advisories and patches from codesys. Update git to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| codesys | git | >= 0, < 1.1.0.0 | Affected |
| codesys | development_system | >= 0, < 3.5.17.0 | Affected |
Frequently Asked Questions
What is CVE-2021-34599?
CVE-2021-34599 is a high-severity vulnerability affecting codesys git. It was published on December 1, 2021 and has a CVSS 3.1 base score of 7.4 (HIGH).
How severe is CVE-2021-34599?
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-34599?
Check the references section for vendor advisories and patches from codesys. Update git to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-34599?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-34599 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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