CVE-2021-33813 (High) detected in jdom-1.0.jar

[mend-bolt-for-github[bot]]

CVE-2021-33813 - High Severity Vulnerability

Vulnerable Library - jdom-1.0.jar

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/jdom/jdom/1.0/jdom-1.0.jar

Dependency Hierarchy: - forms_rt-7.0.3.jar (Root Library) - :x: **jdom-1.0.jar** (Vulnerable Library)

Found in HEAD commit: 1d5d282ecdd7bec32c9d58adb1e9155af4e18bc6

Found in base branch: master

Vulnerability Details

An XXE issue in SAXBuilder in JDOM through 2.0.6 allows attackers to cause a denial of service via a crafted HTTP request.

Publish Date: 2021-06-16

URL: CVE-2021-33813

CVSS 3 Score Details (7.5)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://nvd.nist.gov/vuln/detail/CVE-2021-33813

Release Date: 2021-06-16

Fix Resolution: org.apache.servicemix.bundles:org.apache.servicemix.bundles.jdom - 2.0.5_1;org.jdom:jdom2:2.0.6.1

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Micro-Learning Topic: Denial of service (Detected by phrase)

Matched on "denial of service"

The Denial of Service (DoS) attack is focused on making a resource (site, application, server) unavailable for the purpose it was designed. There are many ways to make a service unavailable for legitimate users by manipulating network packets, programming, logical, or resources handling vulnerabilities, among others. Source: https://www.owasp.org/index.php/Denial_of_Service

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Micro-Learning Topic: Vulnerable library (Detected by phrase)

Matched on "Vulnerable Library"

What is this? (2min video)

Use of vulnerable components will introduce weaknesses into the application. Components with published vulnerabilities will allow easy exploitation as resources will often be available to automate the process.

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Micro-Learning Topic: External entity injection (Detected by phrase)

Matched on "XXE"

What is this? (2min video)

An XML External Entity attack is a type of attack against an application that parses XML input. This attack occurs when XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, server-side request forgery, port scanning from the perspective of the machine where the parser is located, and other system impacts.

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Helpful references

• OWASP XML External Entity (XXE) Processing - OWASP community page with comprehensive information about XML external entity attacks, and links to various OWASP resources to help detect or prevent it.
• MSDN Security Briefs - XML Denial of Service Attacks and Defenses - An MSDN Magazine article that goes into detail on XML entity attacks and how to defend against them.
• OWASP XML External Entity Prevention Cheat Sheet - This article is focused on providing clear, simple, actionable guidance for preventing XML external entity flaws in your applications.