CVE-2020-8195 is a medium-severity vulnerability affecting Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14, and 10.5-70.18, as well as Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d, and 10.2.7. This vulnerability allows for improper input validation, leading to limited information disclosure to low privileged users. The CVSS score of this vulnerability is 6.5, indicating a medium level of severity, which requires immediate attention from security teams.
Risk to organizations includes potential exposure of sensitive information, which may be leveraged by attackers for unauthorized access or further exploitation. Given the nature of this vulnerability, organizations should prioritize patching immediately to mitigate associated risks.
As of now, this vulnerability is known to have an exploit available, and it has been included in the Known Exploited Vulnerabilities (KEV) catalog since November 3, 2021. Organizations are urged to apply necessary updates as per vendor instructions to protect their systems.
Organizations should schedule remediation for this vulnerability as part of their security protocols, ensuring that all affected systems are updated to the latest versions.
Vulnerability Details
The vulnerability arises from improper input validation, categorized under CWE-20 and CWE-22. The affected products include Citrix ADC and Citrix Gateway across multiple versions, as well as Citrix SDWAN WAN-OP devices. The vulnerability was published on July 10, 2020, and is classified with a CVSS base score of 6.5.
Technical Analysis
The root cause of CVE-2020-8195 is the failure to properly validate user input, which can lead to information disclosure. The attack vector is network-based, requiring low privileges to exploit, meaning that an attacker could potentially gather sensitive information without needing extensive access. The attack complexity is rated as low, and no user interaction is required, which heightens the risk of exploitation.
Impact analysis shows that the confidentiality impact is high, while integrity and availability impacts remain none. This indicates that sensitive information could be accessed without affecting the system’s functionality.
Risk & Impact Analysis
The deployment of Citrix ADC and Gateway products in various environments increases the potential blast radius of this vulnerability. With many organizations utilizing these solutions for critical operations, the risk of sensitive data exposure is significant. Immediate action is required to mitigate the risks associated with CVE-2020-8195.
The urgency of addressing this vulnerability is heightened by its inclusion in the KEV catalog, indicating active exploitation. Organizations should prioritize remediation efforts based on their assessment of exposure and risk.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The vulnerability affects the following versions of Citrix products: Citrix ADC versions prior to 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14, and 10.5-70.18; along with Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d, and 10.2.7. Organizations should ensure they are running updated software to mitigate risk.
Mitigation & Remediation
To mitigate the risks associated with CVE-2020-8195, organizations should apply the latest patches provided by Citrix. The updates resolve the improper input validation issue. For detailed guidance on patching, refer to the vendor's advisory at application security assessment. In addition, organizations should implement configuration hardening and network controls to further secure their environment.
Detection Guidance
Monitoring tools should be used to detect any abnormal behavior or unauthorized access attempts related to Citrix ADC and Gateway products. Log indicators should be maintained to identify any potential exploitation attempts for CVE-2020-8195.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2020-8195 lies in its representation of the broader trends in vulnerabilities related to improper input validation. Security teams should take this as a learning opportunity to enhance their defensive strategies and ensure that proper input validation is enforced throughout their applications.
For further insights into securing your applications, organizations may consider exploring our cloud penetration testing guide and our mobile app penetration testing guide to identify and remediate similar vulnerabilities.
Additionally, reviewing our penetration testing methodology can also provide valuable insights into fortifying your security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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