CVE-2018-20179 : Exploit Details and Defense Strategies

This CVE involves a vulnerability in rdesktop software versions up to v1.8.3, leading to a Heap-Based Buffer Overflow and potential remote code execution.

Understanding CVE-2018-20179

What is CVE-2018-20179?

The rdesktop software, up to v1.8.3, contains an Integer Underflow flaw in the lspci_process() function, resulting in memory corruption and the possibility of remote code execution.

The Impact of CVE-2018-20179

The vulnerability allows attackers to exploit the Heap-Based Buffer Overflow, potentially leading to remote code execution.

Technical Details of CVE-2018-20179

Vulnerability Description

The Integer Underflow in rdesktop versions up to v1.8.3 triggers a Heap-Based Buffer Overflow in the lspci_process() function, causing memory corruption.

Affected Systems and Versions

Affected: rdesktop software versions up to v1.8.3

Exploitation Mechanism

The flaw enables attackers to exploit the Heap-Based Buffer Overflow, potentially executing malicious code remotely.

Mitigation and Prevention

Immediate Steps to Take

Update rdesktop software to a patched version.
Implement network security measures to prevent unauthorized access.

Long-Term Security Practices

Regularly update software and apply security patches.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

Apply the latest patches and updates provided by the rdesktop software vendor.