CVE-2018-9843 : Security Advisory and Response

A vulnerability exists in the CyberArk Password Vault Web Access versions earlier than 9.9.5 and 10.x prior to 10.1, allowing remote code execution via a serialized .NET object in the Authorization HTTP header.

Understanding CVE-2018-9843

This CVE involves a security flaw in CyberArk Password Vault Web Access that enables attackers to execute harmful code remotely.

What is CVE-2018-9843?

The vulnerability in CyberArk Password Vault Web Access versions before 9.9.5 and 10.x prior to 10.1 permits the execution of malicious code by passing a serialized .NET object in the Authorization HTTP header.

The Impact of CVE-2018-9843

This vulnerability can be exploited by remote attackers to execute arbitrary code, posing a significant risk to the security and integrity of affected systems.

Technical Details of CVE-2018-9843

The technical aspects of the CVE provide insight into the specific details of the vulnerability.

Vulnerability Description

The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.

Affected Systems and Versions

CyberArk Password Vault Web Access versions earlier than 9.9.5
CyberArk Password Vault Web Access 10.x versions prior to 10.1

Exploitation Mechanism

Attackers can exploit this vulnerability by passing a serialized .NET object in the Authorization HTTP header, enabling the remote execution of harmful code.

Mitigation and Prevention

Effective mitigation strategies are crucial to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Update CyberArk Password Vault Web Access to version 9.9.5 or 10.1 to mitigate the vulnerability.
Implement network security measures to restrict unauthorized access to vulnerable systems.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Conduct security training for employees to enhance awareness of potential threats and vulnerabilities.

Patching and Updates

Apply security patches and updates provided by CyberArk to address the vulnerability and enhance system security.