Reachability Analysis
This vulnerability is potentially reachable
```
org.owasp.webgoat.lessons.vulnerablecomponents.VulnerableComponentsLesson (Application)
-> ❌ com.thoughtworks.xstream.XStream (Vulnerable Component)
```
Vulnerability Details
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.15, a Server-Side Forgery Request vulnerability can be activated when unmarshalling. The vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.15. The reported vulnerability does not exist if running Java 15 or higher. No user is affected who followed the recommendation to setup XStream's Security Framework with a whitelist! Anyone relying on XStream's default blacklist can immediately switch to a whilelist for the allowed types to avoid the vulnerability. Users of XStream 1.4.14 or below who still want to use XStream default blacklist can use a workaround described in more detailed in the referenced advisories.
:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.
CVE-2020-26258 - High Severity Vulnerability
Vulnerable Library - xstream-1.4.5.jar
XStream is a serialization library from Java objects to XML and back.
Library home page: http://xstream.codehaus.org
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/com/thoughtworks/xstream/xstream/1.4.5/xstream-1.4.5.jar
Dependency Hierarchy: - :x: **xstream-1.4.5.jar** (Vulnerable Library)
Found in base branch: dev
Reachability Analysis
This vulnerability is potentially reachable ``` org.owasp.webgoat.lessons.vulnerablecomponents.VulnerableComponentsLesson (Application) -> ❌ com.thoughtworks.xstream.XStream (Vulnerable Component) ```Vulnerability Details
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.15, a Server-Side Forgery Request vulnerability can be activated when unmarshalling. The vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.15. The reported vulnerability does not exist if running Java 15 or higher. No user is affected who followed the recommendation to setup XStream's Security Framework with a whitelist! Anyone relying on XStream's default blacklist can immediately switch to a whilelist for the allowed types to avoid the vulnerability. Users of XStream 1.4.14 or below who still want to use XStream default blacklist can use a workaround described in more detailed in the referenced advisories.
Publish Date: 2020-12-16
URL: CVE-2020-26258
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 91.7%
CVSS 3 Score Details (7.7)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Changed - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://github.com/x-stream/xstream/security/advisories/GHSA-4cch-wxpw-8p28
Release Date: 2020-12-16
Fix Resolution: 1.4.14-jdk7
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.