CVE-2021-45046 — Apache Log4j2 Deserialization of Untrusted Data Vulnerability
CVE-2021-45046: Apache Log4j2 Deserialization of Untrusted Data Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Apache |
| Product | Log4j2 |
| Date added | 2023-05-01 |
| Due date | 2023-05-22 |
| Ransomware campaign use | Known |
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 (CISA)
Apply updates per vendor instructions.
Notes
https://logging.apache.org/log4j/2.x/security.html; https://nvd.nist.gov/vuln/detail/CVE-2021-45046
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45046
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog