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Improper Access Control in SLF4J

Critical severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Dec 29, 2023

Package

maven org.slf4j:slf4j-ext (Maven)

Affected versions

<= 1.7.25
>= 1.8.0-alpha0, <= 1.8.0-beta2

Patched versions

1.7.26
1.8.0-beta4

Description

org.slf4j.ext.EventData in the slf4j-ext module in QOS.CH SLF4J before 1.8.0-beta4 allows remote attackers to bypass intended access restrictions via crafted data. EventData in the slf4j-ext module in QOS.CH SLF4J, has been fixed in SLF4J version 1.7.26 and later and in the 2.0.x series.

Note that while the fix commit is associated with the tag 1.8.0-beta3, the versions in Maven go directly from 1.8.0-beta2 to 1.8.0-beta4.

References

Published by the National Vulnerability Database Mar 20, 2018
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jun 29, 2022
Last updated Dec 29, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

1.941%
(89th percentile)

Weaknesses

CVE ID

CVE-2018-8088

GHSA ID

GHSA-w77p-8cfg-2x43

Source code

No known source code
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