CVE-2021-44228
10.0 · CRITICAL Actively ExploitedOverview
CVE-2021-44228 is a critical-severity vulnerability affecting siemens 6bk1602-0aa12-0tp0_firmware. It was published on December 10, 2021 and has a CVSS 3.1 base score of 10.0 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.
Remediation
Check the references section for vendor advisories and patches from siemens. Update 6bk1602-0aa12-0tp0_firmware 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 |
|---|---|---|---|
| siemens | 6bk1602-0aa12-0tp0_firmware | >= 0, < 2.7.0 | Affected |
| siemens | 6bk1602-0aa22-0tp0_firmware | >= 0, < 2.7.0 | Affected |
| siemens | 6bk1602-0aa32-0tp0_firmware | >= 0, < 2.7.0 | Affected |
| siemens | 6bk1602-0aa42-0tp0_firmware | >= 0, < 2.7.0 | Affected |
| siemens | 6bk1602-0aa52-0tp0_firmware | >= 0, < 2.7.0 | Affected |
| apache | log4j | >= 2.0.1, < 2.3.1 | Affected |
| siemens | capital | >= 0, < 2019.1 | Affected |
| siemens | comos | >= 0, < 10.4.2 | Affected |
| siemens | e-car_operation_center | >= 0, < 2021-12-13 | Affected |
References
Frequently Asked Questions
What is CVE-2021-44228?
CVE-2021-44228 is a critical-severity vulnerability affecting siemens 6bk1602-0aa12-0tp0_firmware. It was published on December 10, 2021 and has a CVSS 3.1 base score of 10.0 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2021-44228?
This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-44228?
Check the references section for vendor advisories and patches from siemens. Update 6bk1602-0aa12-0tp0_firmware 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-2021-44228?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-44228 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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Browser-based exploitation validates findings with real proof-of-concept.
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