CVE-2021-45046 Detail
Undergoing Reanalysis
This vulnerability has been modified and is currently undergoing reanalysis. Please check back soon to view the updated vulnerability summary. DescriptionIt 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. Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
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CVSS 3.x Severity and Vector Strings:
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Weakness Enumeration
Known Affected Software Configurations Switch to CPE 2.2 Configuration 1 ( hide )
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Denotes Vulnerable Software Quick InfoCVE Dictionary Entry:CVE-2021-45046 NVD Published Date: 12/14/2021 NVD Last Modified: 02/04/2025 Source: Apache Software Foundation |