In Spring Framework, versions 5.2.x prior to 5.2.15 and versions 5.3.x prior to 5.3.7, a WebFlux application is vulnerable to a privilege escalation: by (re)creating the temporary storage directory, a locally authenticated malicious user can read or modify files that have been uploaded to the WebFlux application, or overwrite arbitrary files with multipart request data.
CVE-2021-22118 - High Severity Vulnerability
Vulnerable Library - spring-web-5.3.3.jar
Spring Web
Library home page: https://github.com/spring-projects/spring-framework
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/org/springframework/spring-web/5.3.3/spring-web-5.3.3.jar
Dependency Hierarchy: - spring-boot-starter-web-2.4.2.jar (Root Library) - :x: **spring-web-5.3.3.jar** (Vulnerable Library)
Found in HEAD commit: 338ae0024bb25a8bbd720eae5b5fbae3875c4bf3
Found in base branch: master
Vulnerability Details
In Spring Framework, versions 5.2.x prior to 5.2.15 and versions 5.3.x prior to 5.3.7, a WebFlux application is vulnerable to a privilege escalation: by (re)creating the temporary storage directory, a locally authenticated malicious user can read or modify files that have been uploaded to the WebFlux application, or overwrite arbitrary files with multipart request data.
Publish Date: 2021-05-27
URL: CVE-2021-22118
CVSS 3 Score Details (7.8)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - 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://tanzu.vmware.com/security/cve-2021-22118
Release Date: 2021-05-27
Fix Resolution (org.springframework:spring-web): 5.3.7
Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 2.4.6
:rescue_worker_helmet: Automatic Remediation is available for this issue