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Input Validation and Injection in Apache 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all affected software assets for which updates exist, the only acceptable remediation actions are: 1) Apply updates; OR 2) remove affected assets from agency networks. Temporary mitigations using one of the measures provided at https://www.cisa.gov/uscert/ed-22-02-apache-log4j-recommended-mitigation-measures are only acceptable until updates are available.","short_description":"Apache Log4j2 contains a vulnerability where JNDI features do not protect against attacker-controlled JNDI-related endpoints, allowing for remote code execution.","vendor_project":"Apache","vulnerability_name":"Apache Log4j2 Remote Code Execution Vulnerability"},"max_severity":"critical","modified":"2025-10-22T19:37:02.616807Z","published":"2021-12-10T00:40:56Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44228"},{"type":"WEB","url":"https://github.com/apache/logging-log4j2/pull/608"},{"type":"WEB","url":"https://github.com/github/advisory-database/pull/5501"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf"},{"type":"WEB","url":"https://packetstormsecurity.com/files/165673/UniFi-Network-Application-Unauthenticated-Log4Shell-Remote-Code-Execution.html"},{"type":"WEB","url":"https://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html"},{"type":"WEB","url":"https://packetstormsecurity.com/files/167917/MobileIron-Log4Shell-Remote-Command-Execution.html"},{"type":"WEB","url":"https://packetstormsecurity.com/files/171626/AD-Manager-Plus-7122-Remote-Code-Execution.html"},{"type":"WEB","url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032"},{"type":"WEB","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd"},{"type":"WEB","url":"https://seclists.org/fulldisclosure/2022/Dec/2"},{"type":"WEB","url":"https://seclists.org/fulldisclosure/2022/Jul/11"},{"type":"WEB","url":"https://seclists.org/fulldisclosure/2022/Mar/23"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20211210-0007"},{"type":"WEB","url":"https://support.apple.com/kb/HT213189"},{"type":"WEB","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd"},{"type":"WEB","url":"https://twitter.com/kurtseifried/status/1469345530182455296"},{"type":"WEB","url":"https://www.bentley.com/en/common-vulnerability-exposure/be-2022-0001"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-44228"},{"type":"WEB","url":"https://www.debian.org/security/2021/dsa-5020"},{"type":"WEB","url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html"},{"type":"WEB","url":"https://www.kb.cert.org/vuls/id/930724"},{"type":"WEB","url":"https://www.nu11secur1ty.com/2021/12/cve-2021-44228.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/alert-cve-2021-44228.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-7rjr-3q55-vv33"},{"type":"PACKAGE","url":"https://github.com/apache/logging-log4j2"},{"type":"WEB","url":"https://github.com/cisagov/log4j-affected-db"},{"type":"WEB","url":"https://github.com/cisagov/log4j-affected-db/blob/develop/SOFTWARE-LIST.md"},{"type":"WEB","url":"https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-44228"},{"type":"WEB","url":"https://github.com/tangxiaofeng7/apache-log4j-poc"},{"type":"WEB","url":"https://issues.apache.org/jira/browse/LOG4J2-3198"},{"type":"WEB","url":"https://issues.apache.org/jira/browse/LOG4J2-3201"},{"type":"WEB","url":"https://issues.apache.org/jira/browse/LOG4J2-3214"},{"type":"WEB","url":"https://issues.apache.org/jira/browse/LOG4J2-3221"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00007.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M5CSVUNV4HWZZXGOKNSK6L7RPM7BOKIB"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VU57UJDCFIASIO35GC55JMKSRXJMCDFM"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M5CSVUNV4HWZZXGOKNSK6L7RPM7BOKIB"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VU57UJDCFIASIO35GC55JMKSRXJMCDFM"},{"type":"WEB","url":"https://logging.apache.org/log4j/2.x/changes-report.html#a2.15.0"},{"type":"WEB","url":"https://logging.apache.org/log4j/2.x/manual/lookups.html#JndiLookup"},{"type":"WEB","url":"https://logging.apache.org/log4j/2.x/manual/migration.html"},{"type":"WEB","url":"https://logging.apache.org/log4j/2.x/security.html"},{"type":"WEB","url":"https://msrc-blog.microsoft.com/2021/12/11/microsofts-response-to-cve-2021-44228-apache-log4j2"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165225/Apache-Log4j2-2.14.1-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165260/VMware-Security-Advisory-2021-0028.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165261/Apache-Log4j2-2.14.1-Information-Disclosure.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165270/Apache-Log4j2-2.14.1-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165281/Log4j2-Log4Shell-Regexes.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165282/Log4j-Payload-Generator.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165306/L4sh-Log4j-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165307/Log4j-Remote-Code-Execution-Word-Bypassing.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165311/log4j-scan-Extensive-Scanner.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165371/VMware-Security-Advisory-2021-0028.4.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165532/Log4Shell-HTTP-Header-Injection.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165642/VMware-vCenter-Server-Unauthenticated-Log4Shell-JNDI-Injection-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/165673/UniFi-Network-Application-Unauthenticated-Log4Shell-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/167917/MobileIron-Log4Shell-Remote-Command-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/171626/AD-Manager-Plus-7122-Remote-Code-Execution.html"},{"type":"WEB","url":"http://seclists.org/fulldisclosure/2022/Dec/2"},{"type":"WEB","url":"http://seclists.org/fulldisclosure/2022/Jul/11"},{"type":"WEB","url":"http://seclists.org/fulldisclosure/2022/Mar/23"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/12/10/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/12/10/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/12/10/3"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/12/13/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/12/13/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/12/14/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/12/15/3"}],"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H","type":"CVSS_V3"}],"summary":"Remote code injection in 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