CVE-2021-45046

CRITICAL9.0⚠ KEVEPSS 94.3%

apache-log4j2 - security update

發布日:2021/12/14修改日:2026/3/9加入 CISA KEV 日:2023/5/1
也稱為:DSA-5022-1DEBIAN-CVE-2021-45046

描述

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.

受影響套件(4)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1CRITICAL9.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H

參考連結(29)