Critical Vulnerability Fixes Available For Juniper Devices

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Juniper has addressed multiple critical vulnerabilities in Junos, Junos Space, and JATP devices. Administrators are advised to update to the latest OS version on any affected Juniper device.

Background

Juniper has released a number of security advisories this week which include critical vulnerabilities across many of its devices. The Juniper Advanced Threat Prevention Appliance (JATP) update removes hardcoded admin credentials, while the Junos updates include patches for remote code execution (RCE) and denial of service (DoS) vulnerabilities. Junos Space network management devices are also vulnerable to a memory allocation vulnerability which could lead to DoS and RCE attacks as well.

Analysis

JSA10918 addresses 13 vulnerabilities, including CVE-2017-11610, CVE-2018-0020, and CVE-2019-0022 for Juniper’s ATP, a malware defense appliance designed to detect and prevent malicious activity on a network. An attacker could gain access to this device with hardcoded administrator credentials and disable a core defense against malware.

JSA10918 addresses 13 vulnerabilities

Among the many Junos updates, CVE-2017-7375 and CVE-2016-4448 addressed in JSA10916 could allow a remote unauthenticated attacker to send specially crafted extensible markup language (XML) packets that lead to privilege escalation or format string manipulation. Format string vulnerabilities allow attackers to execute commands when the device should be reading this user input as simple text.

 CVE-2017-7375 and CVE-2016-4448 addressed in JSA10916 could allow a remote unauthenticated attacker to send specially crafted extensible markup language (XML) packets that lead to privilege escalation or format string manipulation

JSA10917 for Junos Space addresses CVE-2018-1126, which relates to similar Junos vulnerabilities mentioned above. Attackers could take control of network management devices such as a Junos Space Appliance and redirect traffic to malicious sources, further infecting more vulnerable assets.

JSA10917 for Junos Space addresses CVE-2018-1126

Solution

Juniper recommends updating to the latest OS version of any of the affected devices or appliances you may have. Manual updates and appliance images can be found on Juniper’s download site here.

Identifying affected systems

A list of Nessus plugins to identify these vulnerabilities will appear here as they’re released.

Get more information

Learn more about Tenable, the first Cyber Exposure platform for holistic management of your modern attack surface. Get a free 60-day trial of Tenable.io Vulnerability Management.

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Tenable™, Inc. is the Cyber Exposure company. Over 24,000 organizations of all sizes around the globe rely on Tenable to manage and measure their modern attack surface to accurately understand and reduce cyber risk. As the creator of Nessus®, Tenable built its platform from the ground up to deeply understand assets, networks and vulnerabilities, extending this knowledge and expertise into Tenable.io™ to deliver the world’s first platform to provide live visibility into any asset on any computing platform. Tenable customers include over 50 percent of the Fortune 500, large government agencies and organizations across the private and public sectors. Learn more at tenable.com.
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