CVE-2019-17424 : Exploit Details and Defense Strategies

An exploit exists in the processPrivilage() function located in IOS/process-general.c in nipper-ng 0.11.10, leading to a stack-based buffer overflow vulnerability that can be exploited remotely.

Understanding CVE-2019-17424

What is CVE-2019-17424?

This CVE identifies a stack-based buffer overflow in nipper-ng 0.11.10, allowing remote attackers to execute arbitrary code or cause a Denial of Service (DoS) by providing specially crafted firewall configuration files.

The Impact of CVE-2019-17424

The vulnerability enables attackers to execute arbitrary code on the affected system or disrupt services by triggering a DoS condition.

Technical Details of CVE-2019-17424

Vulnerability Description

The vulnerability arises from a stack-based buffer overflow in the processPrivilage() function in nipper-ng 0.11.10, triggered by maliciously crafted firewall configuration files.

Affected Systems and Versions

Product: nipper-ng 0.11.10
Vendor: n/a
Version: n/a

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by providing specially crafted firewall configuration files, leading to the execution of arbitrary code or a DoS situation.

Mitigation and Prevention

Immediate Steps to Take

Update nipper-ng to a patched version to mitigate the vulnerability.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update and patch all software and systems to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Apply security patches and updates provided by the software vendor to address the vulnerability.