CVE-2019-12716 Explained : Impact and Mitigation
Learn about CVE-2019-12716, a cross-site scripting vulnerability in Cisco Unified Communications Manager. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A security flaw in the web interface of Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition (SME) could potentially enable an attacker to carry out a cross-site scripting (XSS) attack.
Understanding CVE-2019-12716
This CVE involves a vulnerability in the web interface of Cisco Unified Communications Manager that could allow an unauthenticated attacker to conduct a cross-site scripting attack.
What is CVE-2019-12716?
The vulnerability arises from inadequate validation of user-supplied input in the affected software's web interface. An attacker could execute arbitrary script code or access sensitive information by convincing a user to click on a specially crafted link.
The Impact of CVE-2019-12716
The vulnerability has a CVSS base score of 6.1, indicating a medium severity issue. The attack complexity is low, requiring no privileges, but user interaction is necessary. Confidentiality and integrity impacts are low, with no availability impact.
Technical Details of CVE-2019-12716
This section provides more technical insights into the vulnerability.
Vulnerability Description
The flaw allows an attacker to execute arbitrary script code within the affected interface or access sensitive information stored in the user's browser.
Affected Systems and Versions
- Product: Cisco Unified Communications Manager
- Vendor: Cisco
- Versions: Unspecified custom versions
Exploitation Mechanism
To exploit this vulnerability, an attacker needs to persuade a user of the interface to click on a specially crafted link.
Mitigation and Prevention
Protecting systems from CVE-2019-12716 is crucial for maintaining security.
Immediate Steps to Take
- Apply security patches provided by Cisco promptly.
- Educate users about the risks of clicking on unknown or suspicious links.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Implement web application firewalls to detect and block XSS attacks.
- Conduct security training for employees to enhance awareness.
Patching and Updates
Ensure that the latest security updates and patches from Cisco are applied to mitigate the vulnerability.