Citrix SD-WAN Contains Hard-Coded Credentials

Fortify Security Team
Apr 13, 2022

Multiple vulnerabilities have been discovered in Citrix SD-WAN. Citrix SD-WAN is a software defined Wide Area Network (WAN) which can allow for easier management of multiple networks. The most severe of these vulnerabilities contains hard-coded credentials. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

THREAT INTELLIGENCE: There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:

  • Citrix SD-WAN Standard/Premium Edition Appliance versions before 11.4.3a
  • Citrix SD-WAN Center Management Console versions before 11.4.3
  • Citrix SD-WAN Standard/Premium Edition Appliance versions before 11.4.1
  • Citrix SD-WAN Orchestrator for On-Premises versions before 13.2.1

RISK:
Government:

  • Large and medium government entities: Medium
  • Small government entities: Medium

Businesses:

  • Large and medium business entities: Medium
  • Small business entities: Medium

Home users: Low

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Citrix SD-WAN. The most severe of these vulnerabilities could allow for arbitrary JavaScript code execution. Details of the vulnerabilities are as follows:

  • Reflected cross site scripting (XSS) could allow for arbitrary JavaScript code execution. (CVE-2022-27505)
  • Hard-coded credentials allow administrators to access the shell via the SD-WAN CLI. (CVE-2022-27506)

Successful exploitation of the most severe of these vulnerabilities contains hard-coded credentials. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply appropriate updates provided by Citrix to vulnerable systems, immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Inform and educate users regarding threats posed by hypertext links contained in emails or attachments, especially from un-trusted sources.

Apply the Principle of Least Privilege to all systems and services.

REFERENCES:

We recommend the following actions be taken:

  • Apply appropriate updates provided by Citrix to vulnerable systems, immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Inform and educate users regarding threats posed by hypertext links contained in emails or attachments, especially from un-trusted sources.

Apply the Principle of Least Privilege to all systems and services

Recent Posts

Q3 2022 Oracle Quarterly Critical Patches

Multiple vulnerabilities have been discovered in Oracle products, which could allow for remote code execution. THREAT INTELLIGENCE: There are currently no reports of these vulnerabilities being exploited in the wild. SYSTEMS AFFECTED: Autonomous Health Framework Big...

Beware of Fraudulant Cryptocurrency Applications

Summary The FBI is warning financial institutions and investors about cyber criminals creating fraudulent cryptocurrency investment applications (apps) to defraud cryptocurrency investors. The FBI has observed cyber criminals contacting US investors, fraudulently...

Adobe Products Could Allow for Arbitrary Code Execution

Multiple vulnerabilities have been discovered in Adobe products, the most severe of which could allow for arbitrary code execution. Adobe RoboHelp Server is a help authoring tool Adobe Photoshop is a graphics editor Adobe Acrobat and Reader are used to view, create,...

July 12, 2022 – Microsoft Patch Tuesday

Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution in the context of the logged on user. Depending on the privileges associated with the user, an attacker could then install programs;...