A vulnerability classified as problematic was found in Juniper Junos up to 18.1R3 on NFX (Router Operating System). Affected by this vulnerability is an unknown part of the component JDM. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An insecure SSHD configuration in Juniper Device Manager (JDM) and host OS on Juniper NFX Series devices may allow remote unauthenticated access if any of the passwords on the system are empty. The affected SSHD configuration has the PermitEmptyPasswords option set to "yes". Affected releases are Juniper Networks Junos OS: 18.1 versions prior to 18.1R4 on NFX Series.

The bug was discovered 10/10/2018. The weakness was released 10/10/2018 (Website). It is possible to read the advisory at kb.juniper.net. This vulnerability is known as CVE-2018-0044 since 11/15/2017. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 43625 (Juniper Junos Insecure sshd configuration Vulnerability(JSA10878)).

Upgrading to version 18.1R4 eliminates this vulnerability.

Entries connected to this vulnerability are available at 125192, 125190 and 125195.

Productinfo

Type

• Router Operating System

Vendor

• Juniper

Name

• Junos

Version

• 18.1R3

License

• commercial

CPE 2.3info

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CPE 2.2info

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