CVE-2023-24488 is a cross-site scripting vulnerability in Citrix ADC and Citrix Gateway that allows an attacker to perform cross-site scripting. This vulnerability has been classified with a CVSS score of 6.1, placing it in the medium severity category. The nature of this vulnerability poses a significant risk to organizations, as it can potentially allow attackers to manipulate web content and compromise the integrity of user sessions. Given its exploitability and impact, organizations should prioritize patching immediately.
The vulnerability was publicly disclosed on July 10, 2023, and affects various versions of Citrix products. The associated risks stem from the low complexity of the attack and the requirement for user interaction, making it crucial for organizations to remain vigilant and proactive in their security measures.
Currently, there are known exploits available, and organizations are urged to address this vulnerability during their priority patch cycle to prevent potential exploitation.
In summary, CVE-2023-24488 represents a significant risk that requires prompt attention from organizations using Citrix ADC and Citrix Gateway. The potential for exploitation underscores the necessity for timely remediation.
Vulnerability Details
The official description of CVE-2023-24488 states that it is a cross-site scripting vulnerability in Citrix ADC and Citrix Gateway that allows an attacker to perform cross-site scripting. The CVSS score is 6.1, indicating a medium severity level. The affected products include Citrix ADC and Citrix Gateway, specifically versions 12.1, 13.0, and 13.1, which are vulnerable to this issue.
The vulnerability falls under the CWE-79 classification, which pertains to improper neutralization of input during web page generation ('Cross-site Scripting'). This vulnerability was published on July 10, 2023, and its modified status suggests ongoing attention from Citrix.
Technical Analysis
The root cause of CVE-2023-24488 lies in the inadequate validation of user-supplied input, which allows malicious scripts to be injected and executed in the context of a user's session. The attack vector for this vulnerability is primarily network-based, and it has a low attack complexity. Importantly, no privileges are required for an attacker to exploit this vulnerability, but user interaction is necessary to trigger the attack.
The impacts of this vulnerability include low confidentiality and integrity impacts, with no impact on availability. This means that while sensitive data may not be directly compromised, the integrity of user sessions could be significantly affected, leading to unauthorized actions being performed in the context of a legitimate user.
Risk & Impact Analysis
Organizations utilizing Citrix ADC and Citrix Gateway should understand the real-world deployment risk posed by CVE-2023-24488. As this vulnerability allows for cross-site scripting, the potential for exploitation can lead to session hijacking, phishing attacks, or the distribution of malware. The blast radius is significant, particularly in environments where users interact with web applications that may not have robust protections against such attacks.
Given the presence of known exploits, organizations must assess the urgency of addressing this vulnerability based on its CVSS score and the fact that user interaction is required for exploitation. Organizations should prioritize patching immediately to mitigate risks.
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The versions of Citrix products affected by this vulnerability include:
Citrix Gateway versions 12.1 (up to 12.1-65.35, exclusive), 13.0 (up to 13.0-90.11, exclusive), and 13.1 (up to 13.1-45.61, exclusive). Additionally, Citrix Application Delivery Controller versions 12.1 (up to 12.1-55.296, exclusive) and 13.0 and 13.1 with similar restrictions apply.
Mitigation & Remediation
Organizations should apply the necessary patches for Citrix ADC and Citrix Gateway as soon as possible. Specific updates can be found in the vendor's advisory. If a patch is not available, organizations may consider implementing workarounds, such as input validation and sanitization measures, to reduce the risk of exploitation.
Furthermore, organizations should enhance their network controls and monitor suspicious activities to detect potential exploitation attempts. Regular security assessments, including penetration testing, can also help identify and mitigate similar vulnerabilities.
Detection Guidance
To detect potential exploitation attempts of CVE-2023-24488, organizations should monitor for unusual log entries that could indicate cross-site scripting activities. Behavioral anomalies in web application traffic, such as unexpected script executions or redirections, should be flagged and investigated. Additionally, network signatures related to known attack patterns can be utilized for proactive defenses.
AppSecure Threat Intelligence Insight
CVE-2023-24488 highlights the ongoing challenges organizations face regarding web application security. The presence of public proof-of-concept exploits indicates that this vulnerability is being actively discussed and may be targeted in the wild. Security teams should take note of this trend and integrate lessons learned into their security strategies.
In addition to patching, organizations are encouraged to adopt a comprehensive security posture that includes threat modeling and regular assessments to identify potential vulnerabilities. For further reading on application security strategies, organizations can refer to the following resources: application security assessments and vulnerability management programs to enhance overall security maturity.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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