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Citrix Systems, Inc. (NASDAQ: CTXS) and FireEye Inc. (NASDAQ: FEYE) today announced the launch of a new tool for detection of compromise in connection with the previously announced CVE-2019-19781 vulnerability, which affects certain versions of Citrix Application Delivery Controller (ADC), Citrix Gateway, and two older versions of Citrix SD-WAN WANOP. This tool is freely accessible in both the Citrix and FireEye GitHub repositories.
The free tool is designed to allow customers to run it locally against their Citrix instances and receive a rapid assessment of potential indications of compromise in their systems based on known attacks and exploits. The tool is compatible with all supported versions of Citrix ADC and Citrix Gateway, including 11.1, 12.0, 12.1, 10.5, and 13.0, and Citrix SD-WAN WANOP versions 10.2.6 and 11.0.3. In addition to applying the previously released mitigation steps and installing the permanent updates being made available throughout this week, Citrix and FireEye strongly recommend that all Citrix customers run this tool as soon as possible to increase their overall level of awareness of potential compromise and take appropriate steps to protect themselves.
Citrix announced the CVE-2019-19781 vulnerability along with mitigations on December 17, 2019. Exploits – tools to take advantage of the vulnerability – were published by multiple third parties in early January 2020. As a result, the risk to unmitigated customer systems rose significantly.
“While our security and engineering teams have been working around the clock to develop, test and deliver permanent fixes to CVE-2019-19781, we have been actively thinking of ways to assist our customers in understanding if and how their systems may have been affected,” said Fermin J. Serna, Citrix’s Chief Information Security Officer.
“We partnered with FireEye Mandiant, which is at the forefront of cyber threat intelligence and forensic analysis, to develop a tool that leverages their knowledge of recent attacks against CVE-2019-19781 to help organizations identify potential compromises. The tool utilizes our technical knowledge of the Citrix ADC and Gateway products and CVE-2019-19781, combined with industry-leading expertise in cyber forensics and recent FireEye frontline learnings from CVE-2019-19781 related compromises,” Serna said.
Charles Carmakal, Chief Technology Officer of FireEye Mandiant consulting, said, “As we worked closely with various Citrix customers in their response to CVE-2019-19781, we developed an understanding of the active threats related to this vulnerability. We believe it is in the best interest of Citrix customers using affected product versions and the entire security community for us to join forces with Citrix to offer a free tool that organizations can rapidly deploy in their own environments to identify potential indicators of compromise of their systems.”
This tool is designed to provide increased awareness regarding potential indicators of compromise related to CVE-2019-19781 on an organization’s systems. The tool is not guaranteed to find all evidence of compromise, or all evidence of compromise related to CVE-2019-19781. If indications of compromise are identified on systems, organizations should perform a forensic examination of the compromised system to determine the scope and extent of the incident.
Instructions on how to use the tool can be found on the aforementioned GitHub sites.
Citrix has provided additional context for customers regarding the forensic assessment tool in the following blog post: https://www.citrix.com/blogs/2020/01/22/citrix-and-fireeye-mandiant-share-forensic-tool-for-cve-2019-19781/.
Additional FireEye Mandiant findings associated with CVE-2019-19781 can be found in the following blog post: https://www.fireeye.com/blog/products-and-services/2020/01/fireeye-and-citrix-tool-scans-for-iocs-related-to-vulnerability.html.
Citrix (NASDAQ:CTXS) is powering a better way to work with unified workspace, networking, and analytics solutions that help organizations unlock innovation, engage customers, and boost productivity, without sacrificing security. With Citrix, users get a seamless work experience and IT has a unified platform to secure, manage, and monitor diverse technologies in complex cloud environments. Citrix solutions are in use by more than 400,000 organizations including 98 percent of the Fortune 500.
Citrix® is a registered trademark of Citrix Systems, Inc. in the U.S. and other countries. All other trademarks and registered trademarks are property of their respective owners.
About FireEye, Inc.
FireEye is the intelligence-led security company. Working as a seamless, scalable extension of customer security operations, FireEye offers a single platform that blends innovative security technologies, nation-state grade threat intelligence, and world-renowned Mandiant® consulting. With this approach, FireEye eliminates the complexity and burden of cyber security for organizations struggling to prepare for, prevent, and respond to cyber attacks. FireEye has over 8,500 customers across 103 countries, including more than 50 percent of the Forbes Global 2000.
FireEye and Mandiant are registered trademarks or trademarks of FireEye, Inc. in the United States and other countries. All other brands, products, or service names are or may be trademarks or service marks of their respective owners.
This release contains forward-looking statements which are made pursuant to the safe harbor provisions of Section 27A of the Securities Act of 1933 and of Section 21E of the Securities Exchange Act of 1934. The forward-looking statements in this release do not constitute guarantees of future performance. Those statements involve a number of factors that could cause actual results to differ materially, including risks detailed in Citrix’s and FireEye’s respective filings with the Securities and Exchange Commission. These forward-looking statements are subject to change as a result of new information, future events or other circumstances and are expressly qualified in their entirety by this cautionary statement. Neither Citrix nor FireEye assume any obligation to update any forward-looking information contained in this press release or with respect to the announcements described herein.
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