CVE-2019-18211 Explained : Impact and Mitigation
Learn about CVE-2019-18211, a critical vulnerability in Orckestra C1 CMS up to version 6.6, allowing remote code execution by unauthenticated users. Find mitigation steps and best practices here.
A vulnerability has been found in Orckestra C1 CMS up to version 6.6, allowing unauthenticated users to execute arbitrary remote code by exploiting a flaw in the deserialization process of BinaryFormatter payloads.
Understanding CVE-2019-18211
This CVE identifies a critical vulnerability in Orckestra C1 CMS that can lead to remote code execution.
What is CVE-2019-18211?
The vulnerability affects the EntityTokenSerializer class in Composite.dll, enabling unauthenticated users to execute arbitrary remote code by manipulating BinaryFormatter payloads.
The Impact of CVE-2019-18211
The vulnerability poses a severe risk as even low-privileged users can exploit it to execute arbitrary remote code, potentially leading to unauthorized access and system compromise.
Technical Details of CVE-2019-18211
Orckestra C1 CMS up to version 6.6 is susceptible to remote code execution due to improper deserialization of BinaryFormatter payloads.
Vulnerability Description
The EntityTokenSerializer class in Composite.dll lacks proper validation during deserialization, allowing attackers to execute remote code.
Affected Systems and Versions
- Orckestra C1 CMS up to version 6.6
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating BinaryFormatter payloads to execute arbitrary remote code.
Mitigation and Prevention
Taking immediate action and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2019-18211.
Immediate Steps to Take
- Update Orckestra C1 CMS to a patched version that addresses the vulnerability.
- Monitor and restrict access to sensitive systems.
- Implement network segmentation to contain potential attacks.
Long-Term Security Practices
- Regularly update and patch software to prevent known vulnerabilities.
- Conduct security training for users to recognize and report suspicious activities.
- Implement least privilege access to limit the impact of potential breaches.
- Employ application whitelisting to control the execution of unauthorized code.
- Utilize intrusion detection systems to identify and respond to malicious activities.
Patching and Updates
Ensure timely installation of security patches and updates for Orckestra C1 CMS to address the vulnerability and enhance system security.