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Apache Log4j Core: CVE-2021-44832: Apache Log4j2 Remote Code Execution

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Apache Log4j Core: CVE-2021-44832: Apache Log4j2 Remote Code Execution

Severity
9
CVSS
(AV:N/AC:M/Au:S/C:C/I:C/A:C)
Published
12/28/2021
Created
12/31/2021
Added
12/29/2021
Modified
07/18/2022

Description

Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack where an attacker with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI which can execute remote code. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.

Solution(s)

  • apache-log4j-core-upgrade-2_3_2
  • apache-log4j-core-upgrade-2_12_4
  • apache-log4j-core-upgrade-2_17_1

References

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