Description
It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Apache Software Foundation Apache Log4j
Apache Log4j2 to < 2.16.0affected
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032 ↗
- https://www.oracle.com/security-alerts/alert-cve-2021-44228.html ↗
- https://www.cve.org/CVERecord?id=CVE-2021-44228 ↗
- http://www.openwall.com/lists/oss-security/2021/12/14/4 ↗
- https://logging.apache.org/log4j/2.x/security.html ↗
- https://www.kb.cert.org/vuls/id/930724 ↗
- https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf ↗
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html ↗
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd ↗
- http://www.openwall.com/lists/oss-security/2021/12/15/3 ↗
- https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf ↗
- https://www.debian.org/security/2021/dsa-5022 ↗
- http://www.openwall.com/lists/oss-security/2021/12/18/1 ↗
- https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf ↗
- https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/ ↗
- https://www.oracle.com/security-alerts/cpujan2022.html ↗
- https://www.oracle.com/security-alerts/cpuapr2022.html ↗
- https://www.oracle.com/security-alerts/cpujul2022.html ↗
- https://security.gentoo.org/glsa/202310-16 ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046 ↗