CVE-2019-16279 : Exploit Details and Defense Strategies

A memory error in the SSL_accept function within nostromo nhttpd up to version 1.9.6 can be exploited by an attacker to cause a denial of service by sending a specially crafted HTTP request.

Understanding CVE-2019-16279

This CVE involves a vulnerability in the SSL_accept function of nostromo nhttpd up to version 1.9.6, allowing attackers to trigger a denial of service attack.

What is CVE-2019-16279?

CVE-2019-16279 is a memory error vulnerability in the SSL_accept function of nostromo nhttpd up to version 1.9.6, which can be abused by attackers to execute a denial of service attack through a specifically crafted HTTP request.

The Impact of CVE-2019-16279

The exploitation of this vulnerability can lead to a denial of service condition on the affected system, potentially disrupting normal operations and services.

Technical Details of CVE-2019-16279

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability lies in the SSL_accept function within nostromo nhttpd up to version 1.9.6, enabling attackers to exploit a memory error and launch a denial of service attack by sending a malicious HTTP request.

Affected Systems and Versions

Systems running nostromo nhttpd up to version 1.9.6 are vulnerable to this exploit.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting and sending a specific HTTP request to the target system, triggering the memory error in the SSL_accept function and causing a denial of service.

Mitigation and Prevention

Protecting systems from CVE-2019-16279 requires immediate actions and long-term security measures.

Immediate Steps to Take

Implement network-level protections to filter out potentially malicious HTTP requests.
Consider blocking access to the affected function until a patch is available.

Long-Term Security Practices

Regularly update and patch the nostromo nhttpd software to mitigate known vulnerabilities.
Conduct security assessments and penetration testing to identify and address any potential weaknesses.

Patching and Updates

Stay informed about security updates and patches released by the vendor to address the CVE-2019-16279 vulnerability.