CVE-2020-3546 Explained : Impact and Mitigation

A vulnerability in the web-based management interface of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to access sensitive information on an affected device. The vulnerability is due to insufficient validation of requests sent to the interface.

Understanding CVE-2020-3546

This CVE involves an information disclosure vulnerability in Cisco Email Security Appliance (ESA).

What is CVE-2020-3546?

The vulnerability in the web-based management interface of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) allows remote attackers to access sensitive information on affected devices.

The Impact of CVE-2020-3546

The vulnerability could enable attackers to obtain IP addresses configured on internal interfaces of affected devices. However, there is a workaround available to address this issue.

Technical Details of CVE-2020-3546

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability arises from insufficient validation of requests to the web-based management interface of Cisco Email Security Appliance (ESA).

Affected Systems and Versions

Product: Cisco Email Security Appliance (ESA)
Vendor: Cisco
Versions: Not applicable (n/a)

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device.

Mitigation and Prevention

Protecting systems from CVE-2020-3546 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply the workaround provided by Cisco to mitigate the vulnerability.
Monitor for any unusual activities on the affected devices.

Long-Term Security Practices

Regularly update and patch the Cisco Email Security Appliance to prevent future vulnerabilities.

Patching and Updates

Ensure that the Cisco Email Security Appliance is kept up to date with the latest security patches and updates.