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githubGitHub Advisory DatabaseGHSA-VWQQ-5VRC-XW9H
HistoryJun 05, 2020 - 2:15 p.m.

Improper validation of certificate with host mismatch in Apache Log4j SMTP appender

2020-06-0514:15:51
CWE-295
GitHub Advisory Database
github.com
159

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

0.002 Low

EPSS

Percentile

56.8%

Improper validation of certificate with host mismatch in Apache Log4j SMTP appender prior to version 2.13.2. 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.

Affected configurations

Vulners
Node
org.apache.logging.log4j\log4jMatchcore
OR
org.apache.logging.log4j\log4jMatchcore
OR
org.apache.logging.log4j\Matchlog4j
OR
org.apache.logging.log4j\Matchlog4j
OR
org.apache.logging.log4j\log4jMatchcore
OR
org.apache.logging.log4j\Matchlog4j

References

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

0.002 Low

EPSS

Percentile

56.8%