CVE-2017-3800 : What You Need to Know

A vulnerability in the content scanning engine of Cisco AsyncOS Software for Cisco Email Security Appliances could allow unauthorized remote attackers to bypass configured message or content filters.

Understanding CVE-2017-3800

This CVE identifies a flaw in Cisco AsyncOS Software for Cisco Email Security Appliances that could be exploited by remote attackers to circumvent configured message or content filters.

What is CVE-2017-3800?

The vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliances allows remote attackers to bypass configured message or content filters on the device.

The Impact of CVE-2017-3800

Unauthorized remote attackers can circumvent configured message or content filters on affected devices.
The vulnerability affects all versions prior to the initial patched release of Cisco AsyncOS Software for Cisco Email Security Appliances.

Technical Details of CVE-2017-3800

This section provides detailed technical information about the CVE.

Vulnerability Description

The flaw in the content scanning engine of Cisco AsyncOS Software for Cisco Email Security Appliances enables unauthorized remote attackers to bypass configured message or content filters.

Affected Systems and Versions

Affected products: Cisco AsyncOS Software for Cisco Email Security Appliances.
Known affected versions: 9.7.1-066, 9.7.1-HP2-207, and 9.8.5-085.
Resolved in fixed versions: 10.0.1-083 and 10.0.1-087.

Exploitation Mechanism

Remote attackers exploit the vulnerability to bypass configured message or content filters on the affected devices.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2017-3800 vulnerability.

Immediate Steps to Take

Update to the fixed versions: 10.0.1-083 or 10.0.1-087 to address the vulnerability.
Monitor Cisco's security advisories for any further updates or patches.

Long-Term Security Practices

Regularly update and patch Cisco AsyncOS Software for Cisco Email Security Appliances.
Implement network segmentation and access controls to limit exposure to potential attacks.

Patching and Updates

Apply patches and updates provided by Cisco to ensure the security of the Email Security Appliances.