CVE-2021-1516 Explained : Impact and Mitigation

This vulnerability affects Cisco Web Security Appliance (WSA) and could allow a remote attacker to access sensitive information. Learn more about the impact, technical details, and mitigation strategies below.

Understanding CVE-2021-1516

This CVE refers to an information disclosure vulnerability in Cisco Web Security Appliance (WSA) that could be exploited by an authenticated, remote attacker.

What is CVE-2021-1516?

A flaw in the web-based management interface of Cisco AsyncOS Software for Cisco WSA, ESA, and SMA allows attackers to view confidential information exchanged via HTTP requests.

The Impact of CVE-2021-1516

Exploiting this vulnerability could enable attackers to access passwords configured on the affected devices, posing a risk to the confidentiality of sensitive data.

Technical Details of CVE-2021-1516

This section provides more insight into the vulnerability, affected systems, and how it can be exploited.

Vulnerability Description

The flaw involves including confidential data in HTTP requests, enabling attackers to view passwords within the interface.

Affected Systems and Versions

Cisco Web Security Appliance (WSA) is impacted, with all versions susceptible to this vulnerability.

Exploitation Mechanism

Attackers can exploit this issue by inspecting raw HTTP requests exchanged between users and the device, allowing them to obtain sensitive information.

Mitigation and Prevention

Discover immediate steps to protect your systems and best practices for long-term security.

Immediate Steps to Take

Ensure access controls are in place, monitor network traffic for any suspicious activity, and restrict access to sensitive systems.

Long-Term Security Practices

Regularly update and patch the affected systems, conduct security assessments, and train employees on cybersecurity best practices.

Patching and Updates

Stay informed about security advisories, apply patches promptly, and implement security measures to prevent unauthorized access.