CVE-2021-42550 (Medium) detected in logback-classic-1.2.6.jar, logback-core-1.2.6.jar

[mend-for-github-com]

CVE-2021-42550 - Medium Severity Vulnerability

Vulnerable Libraries - logback-classic-1.2.6.jar, logback-core-1.2.6.jar

logback-classic-1.2.6.jar

logback-classic module

Library home page: http://logback.qos.ch

Path to dependency file: /demos/claim-bot/pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-classic/1.2.6/logback-classic-1.2.6.jar

Dependency Hierarchy:

• spring-boot-starter-thymeleaf-2.5.5.jar (Root Library)
  • spring-boot-starter-2.5.5.jar
    • spring-boot-starter-logging-2.5.5.jar
      • ❌ logback-classic-1.2.6.jar (Vulnerable Library)

logback-core-1.2.6.jar

logback-core module

Library home page: http://logback.qos.ch

Path to dependency file: /libs/symphony-bdk/symphony-bdk-chat-workflow-spring-boot-starter/pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar,/home/wss-scanner/.m2/repository/ch/qos/logback/logback-core/1.2.6/logback-core-1.2.6.jar

Dependency Hierarchy:

• spring-boot-starter-thymeleaf-2.5.5.jar (Root Library)
  • spring-boot-starter-2.5.5.jar
    • spring-boot-starter-logging-2.5.5.jar
      • logback-classic-1.2.6.jar
        • ❌ logback-core-1.2.6.jar (Vulnerable Library)

Found in HEAD commit: 3da9e0f849079934eb92135cec1f523e22bdc1ad

Found in base branch: spring-bot-master

Vulnerability Details

In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could craft a malicious configuration allowing to execute arbitrary code loaded from LDAP servers.

Publish Date: 2021-12-16

URL: CVE-2021-42550

CVSS 3 Score Details (6.6)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: High
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=VE-2021-42550

Release Date: 2021-12-16

Fix Resolution: ch.qos.logback:logback-classic:1.2.9;ch.qos.logback:logback-core:1.2.9