CVE-2020-5208 : Security Advisory and Response
Learn about CVE-2020-5208, a high-severity remote code execution vulnerability in ipmitool before 1.8.19. Understand its impact, affected systems, exploitation mechanism, and mitigation steps.
A remote code execution vulnerability has been identified in ipmitool before version 1.8.19, potentially leading to buffer overflows and remote code execution.
Understanding CVE-2020-5208
This CVE involves a high-severity vulnerability in ipmitool that could allow remote attackers to execute arbitrary code on the affected system.
What is CVE-2020-5208?
The vulnerability in ipmitool before version 1.8.19 arises from inadequate validation of data received from a remote LAN party, enabling buffer overflows and the possibility of remote code execution, particularly risky if ipmitool runs with elevated privileges.
The Impact of CVE-2020-5208
The vulnerability's high severity is reflected in a CVSS base score of 7.7, with high impacts on confidentiality, integrity, and a low level of privileges required for exploitation. The attack complexity is high, and user interaction is necessary.
Technical Details of CVE-2020-5208
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
Multiple functions in ipmitool before 1.8.19 lack proper validation of data from remote LAN sources, opening the door to buffer overflows and potential remote code execution.
Affected Systems and Versions
- Product: ipmitool
- Vendor: ipmitool
- Versions Affected: < 1.8.19 (unspecified version type)
Exploitation Mechanism
The vulnerability can be exploited remotely over a network, requiring low privileges and user interaction, with a changed scope.
Mitigation and Prevention
Protecting systems from CVE-2020-5208 involves immediate steps and long-term security practices.
Immediate Steps to Take
- Update ipmitool to version 1.8.19 or newer to mitigate the vulnerability.
- Restrict network access to vulnerable systems.
- Monitor network traffic for signs of exploitation.
Long-Term Security Practices
- Regularly update software and firmware to patch known vulnerabilities.
- Implement the principle of least privilege to limit potential damage from successful attacks.
Patching and Updates
Ensure timely application of security patches and updates to all relevant systems and software components.