CVE-2019-9146 Explained : Impact and Mitigation

Jamf Self Service 10.9.0 is vulnerable to a man-in-the-middle attack that allows attackers to gain root shell access by exploiting the "publish Bash shell scripts" feature.

Understanding CVE-2019-9146

This CVE entry describes a security vulnerability in Jamf Self Service 10.9.0 that can be exploited by attackers to execute arbitrary commands.

What is CVE-2019-9146?

The vulnerability in Jamf Self Service 10.9.0 enables man-in-the-middle attackers to insert a specific command into the TCP data stream, leading to unauthorized access to a root shell.

The Impact of CVE-2019-9146

The exploitation of this vulnerability can result in unauthorized access to sensitive system resources and potential compromise of the affected system's security.

Technical Details of CVE-2019-9146

Jamf Self Service 10.9.0 is susceptible to a specific attack vector that allows for the execution of unauthorized commands.

Vulnerability Description

The vulnerability arises from the insecure handling of the "publish Bash shell scripts" feature, enabling attackers to inject malicious commands into the TCP data stream.

Affected Systems and Versions

Product: Jamf Self Service 10.9.0
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting the command "/Applications/Utilities/Terminal app/Contents/MacOS/Terminal" into the TCP data stream, leading to the execution of unauthorized commands.

Mitigation and Prevention

To address CVE-2019-9146 and enhance system security, follow these mitigation strategies:

Immediate Steps to Take

Disable the affected feature in Jamf Self Service 10.9.0.
Implement network monitoring to detect and prevent man-in-the-middle attacks.

Long-Term Security Practices

Regularly update and patch the software to address known vulnerabilities.
Conduct security audits and penetration testing to identify and remediate potential security weaknesses.

Patching and Updates

Apply patches and updates provided by the software vendor to mitigate the vulnerability effectively.