CVE-2020-7626 in karma-mojo
Summary
by MITRE
karma-mojo through 1.0.1 is vulnerable to Command Injection. It allows execution of arbitrary commands via the config argument.
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Analysis
by VulDB Data Team • 05/13/2024
The karma-mojo plugin version 1.0.1 and earlier contains a critical command injection vulnerability that enables attackers to execute arbitrary system commands through the config argument. This vulnerability arises from insufficient input validation and sanitization within the plugin's command execution mechanisms, creating a pathway for malicious actors to inject and execute unauthorized commands on the affected system. The issue stems from the plugin's failure to properly escape or filter user-supplied input before incorporating it into system command calls, which directly violates security best practices and industry standards.
This command injection flaw operates at the core of the plugin's configuration handling process where user-provided parameters are directly passed to underlying system commands without adequate sanitization. The vulnerability exists in the way the plugin processes the config argument, which serves as an entry point for attackers to inject malicious command sequences that get executed with the privileges of the user running the karma-mojo process. The attack surface is particularly concerning because it allows for arbitrary code execution, potentially enabling full system compromise depending on the execution context and privileges available.
The operational impact of this vulnerability extends beyond simple command execution, as it provides attackers with the capability to escalate privileges, access sensitive data, modify system configurations, or establish persistent access points. Attackers can leverage this vulnerability to perform reconnaissance activities, deploy malware, or conduct further exploitation attempts within the compromised environment. The vulnerability affects systems where karma-mojo is installed and actively used, making it particularly dangerous in continuous integration environments where such plugins are commonly employed. This aligns with CWE-77 and CWE-78 categories that specifically address command injection vulnerabilities in software systems.
Security professionals should consider this vulnerability in relation to the ATT&CK framework's execution tactics, particularly those involving command and scripting interpreters, as well as privilege escalation techniques. The vulnerability's exploitation typically requires minimal prerequisites and can be automated, making it attractive to both automated attack tools and skilled adversaries. Organizations using karma-mojo in their build and test environments face significant risk of compromise, especially when these systems are not properly isolated or when the plugin is executed with elevated privileges.
Mitigation strategies should focus on immediate patching to version 1.0.2 or later, which addresses the command injection vulnerability through proper input validation and sanitization. Additionally, implementing proper access controls, privilege separation, and network segmentation can help reduce the potential impact of exploitation. Regular security assessments and dependency monitoring should be implemented to identify and remediate similar vulnerabilities in other components of the software supply chain, as this vulnerability demonstrates the importance of secure coding practices in build and test tooling components.