Article Detail

Product Affected

This issue affects Junos OS 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.2X75, 18.3, 18.4, 19.1, 19.2, 19.3. Affected platforms: vMX.

Severity

Critical

Severity Assessment (CVSS) Score

9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Problem

The factory configuration for vMX installations, as shipped, includes default credentials for the root account. Without proper modification of these default credentials by the administrator, an attacker could exploit these credentials and access the vMX instance without authorization.

This issue affects Juniper Networks Junos OS:

17.1 versions prior to 17.1R2-S11, 17.1R3-S2 on vMX;
17.2 versions prior to 17.2R3-S3 on vMX;
17.3 versions prior to 17.3R2-S5, 17.3R3-S7 on vMX;
17.4 versions prior to 17.4R2-S9, 17.4R3 on vMX;
18.1 versions prior to 18.1R3-S9 on vMX;
18.2 versions prior to 18.2R2-S7, 18.2R3-S3 on vMX;
18.2X75 versions prior to 18.2X75-D420, 18.2X75-D60 on vMX;
18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3-S1 on vMX;
18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on vMX;
19.1 versions prior to 19.1R1-S4, 19.1R2, 19.1R3 on vMX;
19.2 versions prior to 19.2R1-S3, 19.2R2 on vMX;
19.3 versions prior to 19.3R1-S1, 19.3R2 on vMX.

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-2020-1615 .

Solution

The following software releases have been updated to resolve this specific issue: 17.1R2-S11, 17.1R3-S2, 17.2R3-S3, 17.3R2-S5, 17.3R3-S7, 17.4R2-S9, 17.4R3, 18.1R3-S9, 18.2R2-S7, 18.2R3-S3, 18.2X75-D420, 18.2X75-D60, 18.3R1-S7, 18.3R2-S3, 18.3R3-S1, 18.4R1-S5, 18.4R2-S3, 18.4R3, 19.1R1-S4, 19.1R2, 19.1R3, 19.2R1-S3, 19.2R2, 19.3R1-S1, 19.3R2, 19.4R1, and all subsequent releases.

This issue is being tracked as 1344858 .

How to obtain fixed software:

Security vulnerabilities in Junos are fixed in the next available Maintenance Release of each supported Junos version. In some cases, a Maintenance Release is not planned to be available in an appropriate time-frame. For these cases, Service Releases are made available in order to be more timely. Security Advisory and Security Notices will indicate which Maintenance and Service Releases contain fixes for the issues described. Upon request to JTAC , customers will be provided download instructions for a Service Release. Although Juniper does not provide formal Release Note documentation for a Service Release, a list of "PRs fixed" can be provided on request.

Workaround

Security best practices recommend that the root password be configured on any newly installed vMX instance prior to deployment.

Severity Assessment

Information for how Juniper Networks uses CVSS can be found at KB 16446 [juniper.net] "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

Modification History