CVE-2021-4104
Scores
EPSS
Percentile: 69.3%
CVSS
CVSS Score: 7.5/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
High (H)
Describes the conditions beyond the attacker's control
Privileges Required
Low (L)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Medium
Describes the conditions beyond the attacker's control
Authentication
Single
Describes the level of privileges an attacker must possess
Confidentiality Impact
Partial
Measures the impact to the confidentiality of information
Integrity Impact
Partial
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Partial
Measures the impact to the availability of the impacted component
Description
JMSAppender in Log4j 1.2 is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration. The attacker can provide TopicBindingName and TopicConnectionFactoryBindingName configurations causing JMSAppender to perform JNDI requests that result in remote code execution in a similar fashion to CVE-2021-44228. Note this issue only affects Log4j 1.2 when specifically configured to use JMSAppender, which is not the default. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions.
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Sources
CWEs
Related Vulnerabilities
Exploits
Vulnerable Software (235)
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu bionic 18.04
{ "fixed": "1.2.17-8+deb10u1ubuntu0.1"}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu focal 20.04
{ "fixed": "1.2.17-9ubuntu0.1"}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu hirsute 21.04
{ "fixed": "1.2.17-10ubuntu0.21.04.1"}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu impish 21.10
{ "fixed": "1.2.17-10ubuntu0.21.10.1"}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu jammy 22.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu kinetic 22.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu lunar 23.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu mantic 23.10
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu noble 24.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu oracular 24.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu plucky 25.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: ubuntu xenial 16.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j1.2
Operating System: debian
{ "fixed": "1.2.17-11"}
Source: debian
Type: Configuration
Product: apache-log4j1.2
Operating System: debian bullseye 11
{ "fixed": "1.2.17-10+deb11u1"}
Source: debian
Type: Configuration
Product: apache-log4j1.2
Operating System: debian buster 10
{ "fixed": "1.2.17-8+deb10u2"}
Source: debian
Type: Configuration
Product: eap7-apache-cxf
Operating System: rhel
{ "fixed": "3.4.10-1.SP1_redhat_00001.1.el7eap"}
Source: redhat
Type: Configuration
Product: eap7-avro
Operating System: rhel
{ "fixed": "1.7.6-8.redhat_00003.1.el7eap"}
Source: redhat
Type: Configuration
Product: eap7-h2database
Operating System: rhel
{ "fixed": "1.4.197-3.redhat_00004.1.el7eap"}
Source: redhat
Type: Configuration
Product: eap7-jboss-annotations-api_1.3_spec
Operating System: rhel
{ "fixed": "2.0.1-4.Final_redhat_00001.1.el7eap"}
Source: redhat
Type: Configuration
Product: eap7-jboss-marshalling
Operating System: rhel
{ "fixed": "2.0.15-1.Final_redhat_00001.1.el7eap"}
Source: redhat