CVE-2017-6662 : Vulnerability Insights and Analysis

A vulnerability in the web-based user interface of Cisco Prime Infrastructure (PI) and Evolved Programmable Network Manager (EPNM) could potentially allow an authenticated, remote attacker to gain unauthorized access and execute remote code. The flaw arises from mishandling XML External Entity (XXE) entries during XML file parsing.

Understanding CVE-2017-6662

This CVE identifies a security vulnerability in Cisco Prime Infrastructure and Evolved Programmable Network Manager that could lead to unauthorized access and remote code execution.

What is CVE-2017-6662?

The vulnerability in the web-based user interface of Cisco Prime Infrastructure and Evolved Programmable Network Manager allows an attacker with valid credentials to manipulate files, execute code remotely, and conduct XML Injection by exploiting mishandled XXE entries.

The Impact of CVE-2017-6662

The vulnerability could enable an attacker to gain read and write access to system information and execute remote code, potentially compromising the integrity and confidentiality of data stored in the affected systems.

Technical Details of CVE-2017-6662

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw in Cisco Prime Infrastructure and Evolved Programmable Network Manager stems from the mishandling of XXE entries during XML file parsing, allowing attackers to exploit the system.

Affected Systems and Versions

Cisco Prime Infrastructure software versions 1.1 through 3.1.6
Cisco EPNM software versions 1.2, 2.0, and 2.1

Exploitation Mechanism

To exploit this vulnerability, an attacker needs valid user credentials and can manipulate an administrator into importing a specially crafted XML file containing malicious entries.

Mitigation and Prevention

Protecting systems from CVE-2017-6662 requires immediate action and long-term security practices.

Immediate Steps to Take

Apply patches and updates provided by Cisco to address the vulnerability.
Monitor system logs for any suspicious activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Educate system administrators and users about the risks of opening files from untrusted sources.
Implement strong authentication mechanisms to prevent unauthorized access to the system.

Patching and Updates

Regularly check for security advisories and updates from Cisco to ensure that systems are protected from known vulnerabilities.