CVE-2021-1127 : Vulnerability Insights and Analysis

A vulnerability in the web-based management interface of Cisco Enterprise NFV Infrastructure Software (NFVIS) allows an authenticated attacker to perform a cross-site scripting (XSS) attack, potentially leading to the execution of arbitrary script code.

Understanding CVE-2021-1127

This CVE involves a security flaw in the web-based management interface of Cisco Enterprise NFV Infrastructure Software (NFVIS) that could be exploited by an authenticated remote attacker for malicious activities.

What is CVE-2021-1127?

The vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS) permits an authenticated attacker to conduct a cross-site scripting (XSS) attack by tampering with log files, potentially enabling execution of arbitrary script code.

The Impact of CVE-2021-1127

If successfully exploited, this vulnerability could allow an attacker to execute malicious code within the affected interface context or access sensitive browser-based information.

Technical Details of CVE-2021-1127

This section provides more in-depth technical information regarding CVE-2021-1127.

Vulnerability Description

The vulnerability is a result of inadequate input validation of log file content stored on the affected device, creating a loophole for attackers to inject malicious code via modified log files.

Affected Systems and Versions

The vulnerability affects Cisco Enterprise NFV Infrastructure Software (NFVIS), with the specific affected versions not provided in the data.

Exploitation Mechanism

An attacker can exploit this vulnerability by altering a log file with malicious code and convincing a user to view the modified log file, leading to the execution of arbitrary script code.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2021-1127, immediate steps can be taken alongside long-term security practices.

Immediate Steps to Take

Users are advised to update the software to the latest patched versions and be cautious with interactions on the web-based management interface to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing secure coding practices, regular security audits, and user awareness training on phishing attacks and social engineering tactics can bolster the overall security posture.

Patching and Updates

Regularly check for security advisories from Cisco and apply patches promptly to ensure the system is protected from known vulnerabilities.