CVE-2019-1685 : What You Need to Know

A vulnerability in the Security Assertion Markup Language (SAML) single sign-on (SSO) interface of Cisco Unity Connection could allow an unauthorized individual to execute a cross-site scripting (XSS) attack.

Understanding CVE-2019-1685

This CVE involves a flaw in the SAML SSO interface of Cisco Unity Connection, potentially enabling a remote unauthorized attacker to conduct a cross-site scripting attack.

What is CVE-2019-1685?

The vulnerability arises from inadequate examination of user-supplied input by the interface of the affected device, allowing an attacker to execute arbitrary script code or access sensitive information.

The Impact of CVE-2019-1685

If successfully exploited, the attacker could execute arbitrary script code within the affected interface's environment or gain access to sensitive browser-based information.

Technical Details of CVE-2019-1685

This section provides detailed technical information about the CVE.

Vulnerability Description

The flaw in the SAML SSO interface of Cisco Unity Connection allows for a cross-site scripting attack due to insufficient validation of user-supplied input.

Affected Systems and Versions

Product: Cisco Unity Connection
Vendor: Cisco
Affected Version: 12.5

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Changed
CVSS Base Score: 6.1 (Medium Severity)
Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Mitigation and Prevention

Protecting systems from CVE-2019-1685 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Educate users about phishing attacks and suspicious links.
Monitor network traffic for signs of exploitation.

Long-Term Security Practices

Implement strong input validation mechanisms.
Regularly update and patch software and devices.
Conduct security training for employees on identifying and avoiding social engineering attacks.
Utilize web application firewalls to filter and block malicious traffic.

Patching and Updates

Ensure that the affected Cisco Unity Connection version 12.5 is updated with the latest patches to mitigate the vulnerability.