CVE-2020-23889 : Exploit Details and Defense Strategies

WildBit Viewer v6.6 is susceptible to a User Mode Write AV vulnerability that can lead to a denial of service (DoS) attack when processing a crafted ico file.

Understanding CVE-2020-23889

This CVE identifies a specific vulnerability in WildBit Viewer v6.6 that can be exploited by attackers to cause a DoS condition.

What is CVE-2020-23889?

The vulnerability in WildBit Viewer v6.6 allows attackers to trigger a denial of service by exploiting a User Mode Write AV issue.

The Impact of CVE-2020-23889

Exploitation of this vulnerability can result in a DoS condition, potentially disrupting the normal operation of the affected software.

Technical Details of CVE-2020-23889

WildBit Viewer v6.6 is affected by a User Mode Write AV vulnerability that can be triggered by processing a specially crafted ico file.

Vulnerability Description

The vulnerability originates at Editor!TMethodImplementationIntercept+0x4189c6 within WildBit Viewer v6.6, enabling attackers to initiate a DoS attack.

Affected Systems and Versions

Product: WildBit Viewer v6.6
Vendor: WildBit Software
Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a maliciously crafted ico file to the affected WildBit Viewer software.

Mitigation and Prevention

To address CVE-2020-23889 and enhance system security, consider the following steps:

Immediate Steps to Take

Avoid opening ico files from untrusted or unknown sources.
Implement file type validation mechanisms to detect potentially malicious files.
Consider using alternative software until a patch is available.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Monitor for security advisories from WildBit Software regarding a patch for this vulnerability.