by Kastro
Paper/Archive/CVE-2021-44228

CVE-2021-44228

Apache Software Foundation Apache Log4j2 — Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints

KEV · due 24 Decransomware useEPSS 100%public exploitSSVC actCVSS 10.0
critical.is priorityof 100
100
CVSS 10.0 (ADP)10.0 / 10 × 3030.0In CISA KEV+3030.0EPSS percentile 100.01.000 × 2020.0Exploit: SSVC active+1010.0SSVC exploitation: active+1010.0
Description · from the CVE record

Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.

Affected

ProductAffectedFixed inSource
Apache Log4j22.0-beta9 – < log4j-core*log4j-core*CNA

Scores by source

CISA ADP10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total

References

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