CVE-2018-14596 Explained : Impact and Mitigation

This CVE-2018-14596 article provides insights into a vulnerability affecting versions 1.0 through 5.0 of wancms, allowing remote attackers to disrupt services by consuming excessive resources.

Understanding CVE-2018-14596

This section delves into the details of the vulnerability and its impact.

What is CVE-2018-14596?

wancms versions 1.0 through 5.0 are susceptible to a denial-of-service vulnerability caused by a checkcode URI with large numeric values for font_size, width, and height.

The Impact of CVE-2018-14596

The vulnerability enables remote attackers to disrupt services by consuming significant resources, leading to service unavailability and potential system crashes.

Technical Details of CVE-2018-14596

Explore the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in wancms versions 1.0 through 5.0 allows remote attackers to trigger a denial of service by manipulating the values of font_size, width, and height in the checkcode URI.

Affected Systems and Versions

Product: wancms
Vendor: Not applicable
Versions: 1.0 through 5.0

Exploitation Mechanism

The exploitation involves sending crafted requests with excessively large values for font_size, width, and height parameters in the checkcode URI.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2018-14596.

Immediate Steps to Take

Implement input validation to restrict the size of parameters in URIs.
Monitor system resources for unusual consumption patterns.
Consider implementing rate limiting to prevent resource exhaustion.

Long-Term Security Practices

Regularly update and patch the wancms software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.

Patching and Updates

Apply patches and updates provided by the software vendor to fix the vulnerability and enhance system security.