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2020-04 Security Bulletin: NFX250 Series: Hardcoded credentials in the vSRX VNF instance. (CVE-2020-1614)

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Article ID: JSA10997 SECURITY_ADVISORIES Last Updated: 08 Apr 2020Version: 3.0
Product Affected:
This issue affects Juniper Networks NFX Series Network Services Platform. Affected platforms: NFX250 Series.
Problem:

A Use of Hard-coded Credentials vulnerability exists in the NFX250 Series for the vSRX Virtual Network Function (VNF) instance, which allows an attacker to take control of the vSRX VNF instance if they have the ability to access an administrative service (e.g. SSH) on the VNF, either locally, or through the network.

This issue only affects the NFX250 Series vSRX VNF. No other products or platforms are affected.

This issue is only applicable to environments where the vSRX VNF root password has not been configured.

This issue affects the Juniper Networks NFX250 Network Services Platform vSRX VNF instance on versions prior to 19.2R1.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was found during internal product security testing or research.

This issue has been assigned CVE-2020-1614.

Solution:

The following software releases have been updated to resolve this specific issue: NFX250 Series version 19.2R1, and all subsequent releases.

By upgrading, the hard-coded password is removed from the configuration.

This issue is being tracked as 1334365.

Workaround:

Configure a new password for the device by referring to https://www.juniper.net/documentation/en_US/release-independent/junos/topics/task/configuration/nfx250-configure-vsrx-internal-ip.html .

Additionally, to reduce the risk of exploitability of this issue, customers may choose to implement firewall filters / ACLs to limit administrative access to the VNF vSRX instance to only trusted hosts, networks and administrators. Disable unnecessary services not required to administer the system, until such time that either a password change can take place, or the fixed software is applied during a maintenance window.

Implementation:
Software release Service Packages are available at http://support.juniper.net from the "Download Software" links.
Modification History:
‚Äč2020-04-08: Initial publication
CVSS Score:
10.0 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Severity Level:
Critical
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

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