CVE-2020-9488
April 27, 2020
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1
Affected Packages
org.apache.logging.log4j:log4j-core (JAVA):
Affected version(s) >=2.0-alpha1 <2.3.2Fix Suggestion:
Update to version 2.3.2org.apache.logging.log4j:log4j-core (JAVA):
Affected version(s) >=2.13.0 <2.13.2Fix Suggestion:
Update to version 2.13.2org.apache.logging.log4j:log4j-core (JAVA):
Affected version(s) >=2.4 <2.12.3Fix Suggestion:
Update to version 2.12.3Related Resources (91)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
CVSS v2
Base Score:
4.3
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Weakness Type (CWE)
Improper Certificate Validation
EPSS
Base Score:
0.02
