CVE-2021-27240 : What You Need to Know
Learn about CVE-2021-27240, a critical privilege escalation vulnerability in SolarWinds Patch Manager 2020.2.1 enabling local attackers to execute arbitrary code with Administrator access. Find out how to mitigate and prevent potential risks.
This CVE-2021-27240 article provides details about a vulnerability in SolarWinds Patch Manager 2020.2.1 that allows local attackers to escalate privileges. The flaw exists within the DataGridService WCF service, enabling arbitrary code execution with Administrator privileges.
Understanding CVE-2021-27240
This section delves into the nature of the vulnerability and its potential impact on affected systems.
What is CVE-2021-27240?
CVE-2021-27240 is a privilege escalation vulnerability in SolarWinds Patch Manager 2020.2.1 due to improper validation of user-supplied data within the DataGridService WCF service.
The Impact of CVE-2021-27240
The vulnerability allows local attackers to escalate privileges and execute arbitrary code in the context of Administrator, posing a significant risk to affected systems.
Technical Details of CVE-2021-27240
Explore the specifics of the vulnerability, including affected systems, exploitation mechanisms, and potential risks.
Vulnerability Description
The flaw arises from a lack of proper validation of user-supplied data, leading to the deserialization of untrusted data and subsequent privilege escalation.
Affected Systems and Versions
SolarWinds Patch Manager 2020.2.1 is confirmed to be impacted by this vulnerability, potentially exposing installations to malicious exploitation.
Exploitation Mechanism
To exploit CVE-2021-27240, an attacker must first execute low-privileged code on the target system, leveraging the deserialization vulnerability to gain Administrator privileges.
Mitigation and Prevention
Discover essential steps to mitigate the risks posed by CVE-2021-27240 and enhance the overall security posture of affected environments.
Immediate Steps to Take
It is crucial to apply relevant security patches promptly, restrict access to vulnerable systems, and monitor for any suspicious activities indicating exploitation.
Long-Term Security Practices
Implementing robust security measures, conducting regular security audits, and ensuring staff awareness of cyber threats are vital for long-term protection against similar vulnerabilities.
Patching and Updates
Regularly update and patch software, maintain strong access controls, and prioritize security best practices to prevent and mitigate future vulnerabilities like CVE-2021-27240.