CVE-2017-3798 : Security Advisory and Response

A vulnerability has been discovered in the web-based management interface of Cisco Unified Communications Manager, potentially allowing unauthorized attackers to bypass the cross-site scripting (XSS) filter and launch XSS attacks.

Understanding CVE-2017-3798

This CVE identifies a cross-site scripting (XSS) filter bypass vulnerability in Cisco Unified Communications Manager's web-based management interface.

What is CVE-2017-3798?

The vulnerability in Cisco Unified Communications Manager's web-based management interface could enable remote attackers to execute XSS attacks on users of affected devices.

The Impact of CVE-2017-3798

Attackers could exploit this vulnerability to launch XSS attacks against users of affected devices.

Technical Details of CVE-2017-3798

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability allows unauthenticated remote attackers to perform XSS attacks on users of affected devices by bypassing the XSS filter.

Affected Systems and Versions

Affected Releases: 11.0(1.10000.10), 11.5(1.10000.6)
Fixed Releases: 11.5(1.12029.1), 11.5(1.12900.11), 12.0(0.98000.369), 12.0(0.98000.370), 12.0(0.98000.398), 12.0(0.98000.457)

Exploitation Mechanism

The vulnerability allows attackers to circumvent the XSS filter in the web-based management interface, enabling them to execute XSS attacks.

Mitigation and Prevention

Protect your systems from CVE-2017-3798 with the following steps:

Immediate Steps to Take

Apply the provided fixed releases to mitigate the vulnerability.
Monitor Cisco's security advisories for any updates or patches related to this issue.

Long-Term Security Practices

Regularly update and patch your Cisco Unified Communications Manager to prevent vulnerabilities.
Implement network security measures to detect and block XSS attacks.

Patching and Updates

Ensure all affected systems are updated with the fixed releases mentioned to address the vulnerability.