CVE-2020-28494 : Exploit Details and Defense Strategies
Total.js before version 3.4.7 is vulnerable to Command Injection, allowing unauthorized command execution. Learn about the impact, affected systems, exploitation, and mitigation steps.
Total.js before version 3.4.7 is affected by a Command Injection vulnerability that allows unauthorized command execution. The vulnerability arises due to improper sanitization of the 'type' parameter in certain functions.
Understanding CVE-2020-28494
This CVE involves a Command Injection vulnerability in Total.js, impacting versions prior to 3.4.7.
What is CVE-2020-28494?
Total.js, before version 3.4.7, is susceptible to Command Injection through the 'type' parameter in specific functions, leading to unauthorized command execution.
The Impact of CVE-2020-28494
The vulnerability has a CVSS base score of 8.6 (High severity) with a low attack complexity and network-based attack vector. It poses a high confidentiality impact and low integrity impact.
Technical Details of CVE-2020-28494
Total.js Command Injection vulnerability details.
Vulnerability Description
The issue arises in the image.pipe and image.stream functions, where the 'type' parameter is utilized to construct a command executed via child_process.spawn. The problem stems from improper sanitization of the 'type' parameter.
Affected Systems and Versions
- Product: Total.js
- Vendor: Not applicable
- Versions Affected: < 3.4.7 (unspecified version type: custom)
Exploitation Mechanism
The vulnerability is exploited by manipulating the 'type' parameter to inject malicious commands, taking advantage of the child_process.spawn function.
Mitigation and Prevention
Protective measures against CVE-2020-28494.
Immediate Steps to Take
- Update Total.js to version 3.4.7 or newer to mitigate the vulnerability.
- Avoid passing unsanitized user inputs directly to command execution functions.
Long-Term Security Practices
- Implement input validation and sanitization routines to prevent command injection attacks.
- Regularly monitor and apply security patches to address potential vulnerabilities.
Patching and Updates
Ensure timely installation of official fixes and security updates to safeguard against known vulnerabilities.