CVE-2023-24488 : Security Advisory and Response

This CVE, assigned by Citrix, was published on July 10, 2023. It involves a cross-site scripting vulnerability in Citrix ADC and Citrix Gateway that allows an attacker to perform cross-site scripting.

Understanding CVE-2023-24488

This section delves into the details of the CVE, focusing on its impact, technical aspects, and mitigation strategies.

What is CVE-2023-24488?

CVE-2023-24488 is a cross-site scripting vulnerability found in Citrix ADC and Citrix Gateway. This issue enables attackers to execute malicious scripts on the affected systems, potentially leading to unauthorized access or data manipulation.

The Impact of CVE-2023-24488

The impact of this vulnerability is categorized as medium severity. It has a CVSS base score of 6.1, indicating a potential risk to the confidentiality and integrity of the affected systems. The attack complexity is considered low, but user interaction is required for exploitation.

Technical Details of CVE-2023-24488

This section provides more technical insights into the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

CVE-2023-24488 is classified under CWE-79, which refers to the improper neutralization of input during web page generation (Cross-site Scripting). This vulnerability allows attackers to inject and execute scripts within the context of a web application, posing a serious security risk.

Affected Systems and Versions

The following versions of Citrix ADC and Citrix Gateway are affected by CVE-2023-24488:

Citrix ADC versions 13.1, 13.0, 12.1, 12.1-FIPS, 13.1-FIPS, 12.1-NDcPP
Citrix Gateway versions less than 13.1-45.61, 13.0-90.11, 12.1-65.35, 12.1-55.296, 13.1-37.150, 12.1-55.296

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into web applications or services that accept user input without proper validation. This allows them to potentially steal sensitive information, impersonate users, or carry out other malicious activities.

Mitigation and Prevention

To protect systems from CVE-2023-24488, immediate action and long-term security practices should be implemented.

Immediate Steps to Take

Organizations should apply patches or updates provided by Citrix to address the vulnerability.
Web application developers must sanitize and validate user inputs to prevent cross-site scripting attacks.
Security teams should monitor web traffic and implement web application firewalls to detect and block malicious scripts.

Long-Term Security Practices

Regular security assessments and penetration testing can help identify and address vulnerabilities proactively.
Security awareness training for developers and users can increase awareness of security best practices to prevent similar exploits in the future.

Patching and Updates

Citrix has released security patches for the affected versions of Citrix ADC and Citrix Gateway. It is crucial for organizations to promptly apply these patches to mitigate the risk posed by CVE-2023-24488.