CVE-2024-34064 (Medium) detected in Jinja2-3.1.3-py3-none-any.whl - autoclosed

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

CVE-2024-34064 - Medium Severity Vulnerability

Vulnerable Library - Jinja2-3.1.3-py3-none-any.whl

A very fast and expressive template engine.

Library home page: https://files.pythonhosted.org/packages/30/6d/6de6be2d02603ab56e72997708809e8a5b0fbfee080735109b40a3564843/Jinja2-3.1.3-py3-none-any.whl

Path to dependency file: /Linux/Blackarch/requirements.txt

Path to vulnerable library: /Linux/Blackarch/requirements.txt,/Linux/Python/requirements.txt,/SuperCluster/macOS/Python/requirements.txt,/SuperCluster/ArchLinux/Python/requirements.txt,/SuperCluster/Kali/Python/requirements.txt

Dependency Hierarchy: - :x: **Jinja2-3.1.3-py3-none-any.whl** (Vulnerable Library)

Found in HEAD commit: 282db09a8dda8b4c4d0ff56875195546b18b0ec5

Found in base branch: master

Vulnerability Details

Jinja is an extensible templating engine. The `xmlattr` filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, `/`, `>`, or `=`, as each would then be interpreted as starting a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. The fix for CVE-2024-22195 only addressed spaces but not other characters. Accepting keys as user input is now explicitly considered an unintended use case of the `xmlattr` filter, and code that does so without otherwise validating the input should be flagged as insecure, regardless of Jinja version. Accepting _values_ as user input continues to be safe. This vulnerability is fixed in 3.1.4.

Publish Date: 2024-05-06

URL: CVE-2024-34064

CVSS 3 Score Details (5.4)

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/pallets/jinja/security/advisories/GHSA-h75v-3vvj-5mfj

Release Date: 2024-05-06

Fix Resolution: Jinja2 - 3.1.4

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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: Cross-site scripting (Detected by phrase)

Matched on "XSS"

What is this? (2min video)

Cross-site scripting vulnerabilities occur when unescaped input is rendered into a page displayed to the user. When HTML or script is included in the input, it will be processed by a user's browser as HTML or script and can alter the appearance of the page or execute malicious scripts in their user context.

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Helpful references

• Prevent Cross-Site Scripting (XSS) in ASP.NET Core - A detailed Microsoft article on how to prevent cross-site scripting in ASP.NET Core.
• OWASP Cross Site Scripting (XSS) Software Attack - OWASP community page with comprehensive information about cross site scripting, and links to various OWASP resources to help detect or prevent it.
• OWASP Cross Site Scripting Prevention Cheat Sheet - This article provides a simple positive model for preventing XSS using output encoding properly.

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

: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.