CVE-2020-7839 : Exploit Details and Defense Strategies
Learn about CVE-2020-7839, a high-severity command injection vulnerability in MaEPSBroker <= 2.5.0.31. Find out the impact, affected systems, and mitigation steps to secure your environment.
MarkAny MaEPSBroker Command Injection Vulnerability
Understanding CVE-2020-7839
In MaEPSBroker 2.5.0.31 and prior, a command injection vulnerability caused by improper input validation checks when parsing brokerCommand parameter.
What is CVE-2020-7839?
- CVE-2020-7839 is a command injection vulnerability in MaEPSBroker version 2.5.0.31 and earlier, allowing attackers to execute arbitrary commands.
The Impact of CVE-2020-7839
- CVSS Base Score: 8.8 (High)
- Severity: High
- Attack Vector: Network
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: None
- User Interaction: Required
Technical Details of CVE-2020-7839
MaEPSBroker Command Injection Vulnerability
Vulnerability Description
- The vulnerability arises from inadequate input validation in the brokerCommand parameter, enabling malicious command execution.
Affected Systems and Versions
- Affected Product: MaEPSBroker
- Vendor: MarkAny
- Vulnerable Versions: <= 2.5.0.31
Exploitation Mechanism
- Attack Complexity: Low
- Scope: Unchanged
- Exploitation requires network access and user interaction.
Mitigation and Prevention
Protecting Against MaEPSBroker Command Injection
Immediate Steps to Take
- Update MaEPSBroker to version 2.5.0.32 or higher to mitigate the vulnerability.
- Implement input validation mechanisms to sanitize user inputs.
- Monitor and restrict network access to vulnerable systems.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify and address vulnerabilities.
- Educate developers on secure coding practices to prevent similar issues in the future.
Patching and Updates
- Stay informed about security advisories from MarkAny and apply patches promptly to secure systems.