![](https://nsfocusglobal.com/wp-content/uploads/2020/11/citrix.jpg)
Overview
Recently, Citrix SD-WAN released a security update to address three vulnerabilities (CVE-2020-8271, CVE-2020-8272, CVE-2020-8273). These vulnerabilities allow an unauthenticated attacker with network access to SD-WAN Center to perform arbitrary code execution as root.
At present, there exist detailed analysis of relevant vulnerabilities and the proof of concept (POC) concerning CVE-2020-8271.
Vulnerability Description
CVE | Vulnerability Impact | Pre-conditions |
CVE-2020-8271 | Unauthenticated remote code execution with root privileges | An attacker must be able to communicate with SD-WAN Center’s Management IP/FQDN. |
CVE-2020-8272 | Authentication bypass resulting in exposure of SD-WAN functionality | |
CVE-2020-8273 | Privilege escalation of an authenticated user to root | The attacker must be an authenticated user on SD-WAN Center. |
Affected Versions
- Citrix SD-WAN before 11.2.2
- Citrix SD-WAN before 11.1.2b
- Citrix SD-WAN before 10.2.8
Unaffected Versions
- Citrix SD-WAN 11.2.2 and later versions of Citrix SD-WAN 11.2
- Citrix SD-WAN 11.1.2b and later versions of Citrix SD-WAN 11.1
- Citrix SD-WAN 10.2.8 and later versions of Citrix SD-WAN 10.2
Solution
Citrix has released the latest versions to fix the preceding vulnerabilities. Affected users are advised to upgrade as soon as possible.
The latest versions are available at the following link:
Reference Links
Statement
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About NSFOCUS
NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.
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