CVE-2017-11185 : What You Need to Know

A vulnerability has been identified in the gmp plugin found in strongSwan versions prior to 5.6.0, allowing remote attackers to trigger a denial of service condition.

Understanding CVE-2017-11185

This CVE involves a vulnerability in the gmp plugin of strongSwan versions before 5.6.0, which can be exploited by remote attackers to cause a denial of service through a crafted RSA signature.

What is CVE-2017-11185?

The CVE-2017-11185 vulnerability in strongSwan versions prior to 5.6.0 enables remote attackers to induce a denial of service by triggering a NULL pointer dereference, leading to a daemon crash.

The Impact of CVE-2017-11185

The exploitation of this vulnerability can result in a crash of the daemon, causing a denial of service condition for the affected system.

Technical Details of CVE-2017-11185

This section provides more technical insights into the CVE-2017-11185 vulnerability.

Vulnerability Description

The gmp plugin in strongSwan versions before 5.6.0 allows remote attackers to cause a denial of service through a crafted RSA signature by triggering a NULL pointer dereference.

Affected Systems and Versions

Affected versions: strongSwan versions prior to 5.6.0
Systems running strongSwan with the gmp plugin are vulnerable to this exploit.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by sending a specifically crafted RSA signature to the target system.

Mitigation and Prevention

To address CVE-2017-11185, follow these mitigation strategies:

Immediate Steps to Take

Update strongSwan to version 5.6.0 or later to mitigate the vulnerability.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Apply patches provided by strongSwan to fix the vulnerability and enhance system security.