CVE-2017-17099 : Exploit Details and Defense Strategies

A vulnerability has been identified in the HTTP server of Flexense SyncBreeze Enterprise v10.1.16, allowing unauthenticated SEH based Buffer Overflow, potentially enabling malicious users to execute arbitrary code under the Windows SYSTEM account.

Understanding CVE-2017-17099

This CVE involves a critical vulnerability in Flexense SyncBreeze Enterprise v10.1.16, which could be exploited by attackers to run unauthorized code on affected systems.

What is CVE-2017-17099?

The vulnerability in the HTTP server of Flexense SyncBreeze Enterprise v10.1.16 allows attackers to trigger a buffer overflow by sending a specially crafted GET request, leading to potential code execution under the Windows SYSTEM account.

The Impact of CVE-2017-17099

Exploiting this vulnerability could result in unauthorized access and control over the affected system, posing a significant security risk to sensitive data and system integrity.

Technical Details of CVE-2017-17099

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

Vulnerability Description

The vulnerability is an unauthenticated SEH based Buffer Overflow in the HTTP server of Flexense SyncBreeze Enterprise v10.1.16. By sending a GET request with excessive length, a malicious user can manipulate the system to execute a payload under the Windows SYSTEM account.

Affected Systems and Versions

Product: Flexense SyncBreeze Enterprise v10.1.16
Vendor: Flexense
Version: All versions are affected

Exploitation Mechanism

The exploitation involves sending a crafted GET request that exceeds the limit, allowing attackers to overwrite the SEH record and execute a payload to gain unauthorized access.

Mitigation and Prevention

Protecting systems from CVE-2017-17099 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Implement network-level controls to filter out malicious requests.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.
Educate users on safe browsing habits and potential security risks.

Patching and Updates

Ensure that the affected software, Flexense SyncBreeze Enterprise, is updated to the latest version that includes fixes for the vulnerability.