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Known Exploited Vulnerabilities CVE-2021-44228 Mappings

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.

Mappings

Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name Notes
CVE-2021-44228 Apache Log4j2 Remote Code Execution Vulnerability secondary_impact T1486 Data Encrypted for Impact
Comments
CVE-2021-44228, known as Log4Shell, affects Apache’s Log4j library, an open-source logging framework. An actor can exploit this vulnerability by submitting a specially crafted request to a vulnerable system that causes that system to execute arbitrary code. The request allows a cyber actor to take full control over the system. The actor can then steal information, launch ransomware, or conduct other malicious activity.
References
  1. https://www.microsoft.com/en-us/security/blog/2021/12/11/guidance-for-preventing-detecting-and-hunting-for-cve-2021-44228-log4j-2-exploitation/#attacks
  2. https://www.cisa.gov/sites/default/files/publications/CSRB-Report-on-Log4-July-11-2022_508.pdf
  3. https://www.zdnet.com/article/log4j-flaw-attackers-are-making-thousands-of-attempts-to-exploit-this-severe-vulnerability/
  4. https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-117a
CVE-2021-44228 Apache Log4j2 Remote Code Execution Vulnerability secondary_impact T1496 Resource Hijacking
Comments
CVE-2021-44228, known as Log4Shell, affects Apache’s Log4j library, an open-source logging framework. An actor can exploit this vulnerability by submitting a specially crafted request to a vulnerable system that causes that system to execute arbitrary code. The request allows a cyber actor to take full control over the system. The actor can then steal information, launch ransomware, or conduct other malicious activity.
References
  1. https://www.microsoft.com/en-us/security/blog/2021/12/11/guidance-for-preventing-detecting-and-hunting-for-cve-2021-44228-log4j-2-exploitation/#attacks
  2. https://www.cisa.gov/sites/default/files/publications/CSRB-Report-on-Log4-July-11-2022_508.pdf
  3. https://www.zdnet.com/article/log4j-flaw-attackers-are-making-thousands-of-attempts-to-exploit-this-severe-vulnerability/
  4. https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-117a
CVE-2021-44228 Apache Log4j2 Remote Code Execution Vulnerability secondary_impact T1608.001 Upload Malware
Comments
CVE-2021-44228, known as Log4Shell, affects Apache’s Log4j library, an open-source logging framework. An actor can exploit this vulnerability by submitting a specially crafted request to a vulnerable system that causes that system to execute arbitrary code. The request allows a cyber actor to take full control over the system. The actor can then steal information, launch ransomware, or conduct other malicious activity.
References
  1. https://www.microsoft.com/en-us/security/blog/2021/12/11/guidance-for-preventing-detecting-and-hunting-for-cve-2021-44228-log4j-2-exploitation/#attacks
  2. https://www.cisa.gov/sites/default/files/publications/CSRB-Report-on-Log4-July-11-2022_508.pdf
  3. https://www.zdnet.com/article/log4j-flaw-attackers-are-making-thousands-of-attempts-to-exploit-this-severe-vulnerability/
  4. https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-117a
CVE-2021-44228 Apache Log4j2 Remote Code Execution Vulnerability secondary_impact T1505.003 Web Shell
Comments
CVE-2021-44228, known as Log4Shell, affects Apache’s Log4j library, an open-source logging framework. An actor can exploit this vulnerability by submitting a specially crafted request to a vulnerable system that causes that system to execute arbitrary code. The request allows a cyber actor to take full control over the system. The actor can then steal information, launch ransomware, or conduct other malicious activity.
References
  1. https://www.microsoft.com/en-us/security/blog/2021/12/11/guidance-for-preventing-detecting-and-hunting-for-cve-2021-44228-log4j-2-exploitation/#attacks
  2. https://www.cisa.gov/sites/default/files/publications/CSRB-Report-on-Log4-July-11-2022_508.pdf
  3. https://www.zdnet.com/article/log4j-flaw-attackers-are-making-thousands-of-attempts-to-exploit-this-severe-vulnerability/
  4. https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-117a
CVE-2021-44228 Apache Log4j2 Remote Code Execution Vulnerability exploitation_technique T1190 Exploit Public-Facing Application
Comments
This remote code execution vulnerability is exploited through maliciously-crafted requests to a web application.
References
  1. https://unit42.paloaltonetworks.com/apache-log4j-vulnerability-cve-2021-44228/