CVE-2021-45046 Ransomware

CISA description

Apache Log4j2 contains a deserialization of untrusted data vulnerability due to the incomplete fix of CVE-2021-44228, where the Thread Context Lookup Pattern is vulnerable to remote code execution in certain non-default configurations.

Required action

Apply updates per vendor instructions.

Notes & references

• https://logging.apache.org/log4j/2.x/security.html
• https://nvd.nist.gov/vuln/detail/CVE-2021-45046

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

• RA-5 · Vulnerability Monitoring and Scanning
• SI-2 · Flaw Remediation
• CM-6 · Configuration Settings
• SI-7 · Software, Firmware, and Information Integrity
• CM-8 · System Component Inventory

External lookups

• NVD · CVE-2021-45046
• CVE.org · CVE-2021-45046
• CISA KEV catalog (canonical)