CVE-2021-42648 : Security Advisory and Response
Learn about CVE-2021-42648, a Cross-Site Scripting (XSS) vulnerability in Coder Code-Server before 3.12.0, enabling attackers to execute arbitrary code via manipulated URLs. Find out about the impact, affected systems, exploitation, and mitigation steps.
This CVE-2021-42648 involves a Cross-Site Scripting (XSS) vulnerability in Coder Code-Server prior to version 3.12.0, enabling threat actors to run malicious code via a manipulated URL.
Understanding CVE-2021-42648
This section provides an insight into the nature and implications of the CVE-2021-42648 vulnerability.
What is CVE-2021-42648?
CVE-2021-42648 denotes a Cross-Site Scripting (XSS) vulnerability detected in Coder Code-Server before version 3.12.0. It permits attackers to execute arbitrary code by means of a specifically crafted URL.
The Impact of CVE-2021-42648
The existence of this vulnerability could lead to severe repercussions such as unauthorized code execution and potential data breaches, posing a significant risk to affected systems.
Technical Details of CVE-2021-42648
In this section, detailed technical insights into the CVE-2021-42648 vulnerability are outlined.
Vulnerability Description
The XSS vulnerability in Coder Code-Server before version 3.12.0 enables attackers to execute arbitrary code by exploiting a manipulated URL.
Affected Systems and Versions
- Product: Coder Code-Server
- Vendor: Not applicable
- Versions affected: All versions before 3.12.0
Exploitation Mechanism
The vulnerability is exploited by sending a specially crafted URL to the vulnerable Code-Server instance, allowing threat actors to execute malicious code.
Mitigation and Prevention
This section provides guidance on how to mitigate and prevent the exploitation of CVE-2021-42648.
Immediate Steps to Take
- Upgrade Coder Code-Server to version 3.12.0 or later to eliminate the vulnerability.
- Implement input validation mechanisms to prevent XSS attacks.
Long-Term Security Practices
- Regularly update and patch software components to address security vulnerabilities promptly.
- Conduct security audits and code reviews to identify and eliminate vulnerabilities proactively.
Patching and Updates
Ensure timely application of security patches, especially for critical software components like Coder Code-Server to mitigate potential risks effectively.