CVE-2019-15164 : Exploit Details and Defense Strategies

The libpcap version prior to 1.9.1 contains a vulnerability in the rpcapd/daemon.c file that enables SSRF (Server-Side Request Forgery) attacks due to the ability to input a URL as a capture source.

Understanding CVE-2019-15164

This CVE involves a vulnerability in libpcap that allows SSRF attacks by accepting URLs as capture sources.

What is CVE-2019-15164?

The vulnerability in the rpcapd/daemon.c file of libpcap before version 1.9.1 permits SSRF attacks by allowing the use of URLs as capture sources.

The Impact of CVE-2019-15164

The vulnerability can be exploited to conduct Server-Side Request Forgery (SSRF) attacks, potentially leading to unauthorized access to internal systems or services.

Technical Details of CVE-2019-15164

This section provides technical insights into the CVE.

Vulnerability Description

The flaw in rpcapd/daemon.c in libpcap before 1.9.1 allows SSRF due to the acceptance of URLs as capture sources.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by inputting a URL as a capture source, enabling attackers to perform SSRF attacks.

Mitigation and Prevention

Protective measures to address CVE-2019-15164.

Immediate Steps to Take

Update libpcap to version 1.9.1 or later to mitigate the vulnerability.
Implement network segmentation to restrict access to critical systems.
Monitor and filter outgoing traffic to detect and block SSRF attempts.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Conduct security assessments and penetration testing to identify and address SSRF risks.
Educate users and developers about the risks of SSRF and best practices for secure coding.

Patching and Updates

Ensure timely installation of security patches and updates for libpcap to prevent exploitation of the SSRF vulnerability.