CVE-2017-17699 : Exploit Details and Defense Strategies

A NULL pointer dereference vulnerability in K7 Antivirus 15.1.0309 can be exploited via a specific DeviceIoControl request.

Understanding CVE-2017-17699

This CVE involves a vulnerability in K7 Antivirus 15.1.0309 that allows attackers to trigger a NULL pointer dereference through a particular DeviceIoControl request.

What is CVE-2017-17699?

The vulnerability occurs in K7Sentry.sys version 15.1.0.59 of K7 Antivirus 15.1.0309, leading to a NULL pointer dereference when a DeviceIoControl request with the value 0x950025ac is processed.

The Impact of CVE-2017-17699

This vulnerability could be exploited by attackers to cause a denial of service (DoS) condition or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2017-17699

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in K7 Antivirus 15.1.0309 arises from a NULL pointer dereference triggered by a specific DeviceIoControl request.

Affected Systems and Versions

Product: K7 Antivirus 15.1.0309
Version: K7Sentry.sys 15.1.0.59

Exploitation Mechanism

The vulnerability is exploited by sending a crafted DeviceIoControl request with the value 0x950025ac to the affected system.

Mitigation and Prevention

Protecting systems from CVE-2017-17699 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Consider implementing network-level protections to filter out potentially malicious requests.

Long-Term Security Practices

Regularly update antivirus software to the latest versions.
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from the vendor and apply patches as soon as they are released.