CVE-2021-1399 : Exploit Details and Defense Strategies

A vulnerability in the Self Care Portal of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to modify data on an affected system without proper authorization.

Understanding CVE-2021-1399

This CVE involves a vulnerability in the Self Care Portal of Cisco Unified Communications Manager that could be exploited by a remote attacker to modify system data without proper authorization.

What is CVE-2021-1399?

The vulnerability in the Self Care Portal of Cisco Unified Communications Manager allows an attacker to modify data on the affected system without proper authorization. It is a result of insufficient validation of user-supplied data to the portal.

The Impact of CVE-2021-1399

If successfully exploited, this vulnerability could enable an attacker to tamper with system information without appropriate authorization.

Technical Details of CVE-2021-1399

This section provides more insight into the specific technical details of the CVE.

Vulnerability Description

The vulnerability arises from inadequate validation of user-supplied data to the Self Care Portal, leading to unauthorized modification of information.

Affected Systems and Versions

The vulnerability affects Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition, with all versions being vulnerable.

Exploitation Mechanism

An attacker can exploit this vulnerability by sending a crafted HTTP request to an affected system, enabling them to modify data without proper authorization.

Mitigation and Prevention

To prevent exploitation and ensure system security, the following measures should be taken:

Immediate Steps to Take

Cisco advises users to apply necessary updates and patches provided by the vendor to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor security advisories from Cisco and apply patches promptly to safeguard systems against known vulnerabilities.

Patching and Updates

Keep systems up to date with the latest security patches and updates to address any security loopholes swiftly.