CVE-2023-20203 : Security Advisory and Response

This CVE record pertains to multiple vulnerabilities found in the web-based management interface of Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager (EPNM). These vulnerabilities could be exploited by an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface on an affected device.

Understanding CVE-2023-20203

The vulnerabilities in this CVE are a result of insufficient validation of user-supplied input. An attacker could leverage this to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. It's important to address these vulnerabilities promptly to prevent exploitation.

What is CVE-2023-20203?

CVE-2023-20203 involves stored cross-site scripting (XSS) vulnerabilities in the web-based management interface of Cisco Prime Infrastructure and Cisco EPNM. These vulnerabilities could allow attackers to execute malicious scripts in the context of the affected interface.

The Impact of CVE-2023-20203

If successfully exploited, these vulnerabilities could enable an attacker to execute arbitrary script code within the affected interface, potentially leading to unauthorized access to sensitive information. It highlights the importance of taking necessary security measures to mitigate the risk.

Technical Details of CVE-2023-20203

The vulnerabilities in Cisco Prime Infrastructure and EPNM are attributed to inadequate validation of user-supplied input, creating a pathway for an attacker to launch a stored cross-site scripting (XSS) attack.

Vulnerability Description

The vulnerability allows attackers to inject and execute malicious script code in the context of the affected web-based management interface, potentially leading to unauthorized access and data compromise.

Affected Systems and Versions

Numerous versions of Cisco Prime Infrastructure and EPNM are impacted by this vulnerability. The extensive list of affected versions underlines the importance of applying necessary security patches promptly.

Exploitation Mechanism

To exploit these vulnerabilities, an attacker needs valid credentials to access the web-based management interface of the affected device. By enticing a user to view a page containing malicious HTML or script content, the attacker can execute the attack.

Mitigation and Prevention

Addressing and mitigating CVE-2023-20203 is crucial to safeguard affected systems and prevent potential exploitation by malicious actors.

Immediate Steps to Take

Cisco recommends applying the necessary security updates and patches provided to address these vulnerabilities promptly.
Implementing proper access controls and monitoring mechanisms can help mitigate the risk of unauthorized access.

Long-Term Security Practices

Regular security assessments and audits can help identify and address vulnerabilities proactively.
Training users on recognizing and avoiding potential security threats like phishing emails can enhance overall security posture.

Patching and Updates

Stay informed about security advisories and updates from Cisco and apply patches as soon as they are available.
Regularly update and maintain security configurations to ensure protection against emerging threats.