CVE-2021-45046
Scores
EPSS
Percentile: 94.3%
CVSS
CVSS Score: 8.1/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:H/PR:N/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
None (N)
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:H/Au:N/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
High (H)
Describes the conditions beyond the attacker's control
Authentication
None (N)
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
It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
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Sources
CWEs
Related Vulnerabilities
Exploits
Exploit ID: CVE-2021-45046
Source: cisa
URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Recommendations
Source: nvd
All Ubiquity UniFi users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-wireless/unifi-6.5.55”
Vulnerable Software (69)
Type: Configuration
Product: apache-log4j2
Operating System: debian
{ "fixed": "2.16.0-1"}
Source: debian
Type: Configuration
Product: apache-log4j2
Operating System: debian stretch 9
{ "unaffected": true}
Source: debian
Type: Configuration
Product: apache-log4j2
Operating System: ubuntu bionic 18.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j2
Operating System: ubuntu focal 20.04
{ "fixed": "2.16.0-0.20.04.1"}
Source: ubuntu
Type: Configuration
Product: apache-log4j2
Operating System: ubuntu hirsute 21.04
{ "fixed": "2.16.0-0.21.04.1"}
Source: ubuntu
Type: Configuration
Product: apache-log4j2
Operating System: ubuntu impish 21.10
{ "fixed": "2.16.0-0.21.10.1"}
Source: ubuntu
Type: Configuration
Product: apache-log4j2
Operating System: ubuntu jammy 22.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j2
Operating System: ubuntu trusty 14.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: apache-log4j2
Operating System: ubuntu xenial 16.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: eap7-log4j
Operating System: rhel
{ "fixed": "2.17.1-1.redhat_00001.1.el8eap"}
Source: redhat
Type: Configuration
Product: eap7-log4j
Operating System: rhel
{ "fixed": "2.17.1-1.redhat_00001.1.el7eap"}
Source: redhat
Type: Configuration
Product: log4j
Operating System: altlinux
{ "fixed": "0:2.16.0-alt1_1jpp11"}
Source: redhat
Type: Configuration
Product: log4j-jcl
Operating System: altlinux
{ "fixed": "0:2.16.0-alt1_1jpp11"}
Source: redhat
Type: Configuration
Product: log4j-slf4j
Operating System: altlinux
{ "fixed": "0:2.16.0-alt1_1jpp11"}
Source: redhat
Type: Configuration
Vendor: *
Product: 6bk1602-0aa12-0tp0_firmware
Operating System: * * *
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa12-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_ma...
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa12-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_match": [ { "cpe23uri": "cpe:2.3:o:siemens:6bk1602-0aa12-0tp0_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.7.0", "vulnerable": true } ], "operator": "OR" } ], "operator": "AND"}
Source: nvd
Type: Configuration
Vendor: *
Product: 6bk1602-0aa22-0tp0_firmware
Operating System: * * *
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa22-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_ma...
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa22-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_match": [ { "cpe23uri": "cpe:2.3:o:siemens:6bk1602-0aa22-0tp0_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.7.0", "vulnerable": true } ], "operator": "OR" } ], "operator": "AND"}
Source: nvd
Type: Configuration
Vendor: *
Product: 6bk1602-0aa32-0tp0_firmware
Operating System: * * *
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa32-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_ma...
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa32-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_match": [ { "cpe23uri": "cpe:2.3:o:siemens:6bk1602-0aa32-0tp0_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.7.0", "vulnerable": true } ], "operator": "OR" } ], "operator": "AND"}
Source: nvd
Type: Configuration
Vendor: *
Product: 6bk1602-0aa42-0tp0_firmware
Operating System: * * *
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa42-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_ma...
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa42-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_match": [ { "cpe23uri": "cpe:2.3:o:siemens:6bk1602-0aa42-0tp0_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.7.0", "vulnerable": true } ], "operator": "OR" } ], "operator": "AND"}
Source: nvd
Type: Configuration
Vendor: *
Product: 6bk1602-0aa52-0tp0_firmware
Operating System: * * *
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa52-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_ma...
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:h:siemens:6bk1602-0aa52-0tp0:-:*:*:*:*:*:*:*" } ], "operator": "OR" }, { "cpe_match": [ { "cpe23uri": "cpe:2.3:o:siemens:6bk1602-0aa52-0tp0_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.7.0", "vulnerable": true } ], "operator": "OR" } ], "operator": "AND"}
Source: nvd
Type: Configuration
Vendor: *
Product: audio_development_kit
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:cvat:computer_vision_annotation_tool:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:audio_development_...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:cvat:computer_vision_annotation_tool:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:audio_development_kit:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:datacenter_manager:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:genomics_kernel_library:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:oneapi:-:*:*:*:*:eclipse:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:secure_device_onboard:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:sensor_solution_firmware_development_kit:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:system_debugger:-:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:intel:system_studio:-:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd