Open mend-bolt-for-github[bot] opened 6 months ago
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
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.
CVE-2021-33503 - High Severity Vulnerability
Vulnerable Library - urllib3-1.21.1-py2.py3-none-any.whl
HTTP library with thread-safe connection pooling, file post, and more.
Library home page: https://files.pythonhosted.org/packages/24/53/f397db567de0aa0e81b211d81c13c41a779f14893e42189cf5bdb97611b2/urllib3-1.21.1-py2.py3-none-any.whl
Path to dependency file: /rekall-gui
Path to vulnerable library: /rekall-gui,/rekall-core,/rekall-agent,/src,/tmp/ws-scm/rvmi-rekall
Dependency Hierarchy: - :x: **urllib3-1.21.1-py2.py3-none-any.whl** (Vulnerable Library)
Found in base branch: rvmi
Vulnerability Details
An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
Publish Date: 2021-06-29
URL: CVE-2021-33503
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://github.com/urllib3/urllib3/security/advisories/GHSA-q2q7-5pp4-w6pg
Release Date: 2021-06-29
Fix Resolution: 1.26.5
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