CVE-2021-3934 : Exploit Details and Defense Strategies
Learn about CVE-2021-3934 affecting ohmyzsh/ohmyzsh due to OS Command Injection vulnerability. Understand the impact, technical details, and mitigation steps for enhanced system security.
Ohmyzsh/ohmyzsh is vulnerable to OS Command Injection due to Improper Neutralization of Special Elements used in an OS Command.
Understanding CVE-2021-3934
This CVE identifies a vulnerability in ohmyzsh/ohmyzsh that can allow attackers to execute arbitrary commands on the affected system.
What is CVE-2021-3934?
ohmyzsh/ohmyzsh is susceptible to OS Command Injection, posing a high risk to confidentiality, integrity, and availability of systems.
The Impact of CVE-2021-3934
With a CVSS base score of 7.8, this vulnerability has a high severity level, requiring user interaction for exploitation and affecting local attack vectors.
Technical Details of CVE-2021-3934
This section delves into the specifics of the vulnerability.
Vulnerability Description
The vulnerability stems from improper handling of special elements in OS commands, allowing threat actors to execute unauthorized actions.
Affected Systems and Versions
ohmyzsh/ohmyzsh versions prior to 6cb41b70a6d04301fd50cd5862ecd705ba226c0e are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this issue locally without requiring special privileges, making it a critical security concern.
Mitigation and Prevention
Protecting systems from this vulnerability is crucial for maintaining system security.
Immediate Steps to Take
Users should update ohmyzsh/ohmyzsh to version 6cb41b70a6d04301fd50cd5862ecd705ba226c0e or later to mitigate the risk of OS Command Injection.
Long-Term Security Practices
Implementing strong input validation and security controls can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly monitor for security updates and promptly apply patches to address known vulnerabilities.