On December 12, 2017, a research paper entitled, "Return of Bleichenbacher's Oracle Threat" (ROBOT) was published. Researchers discovered that by using slight variations of an earlier vulnerability discovered by Daniel Bleichenbacher that allows performing RSA decryption and signing operations with the private key of a TLS server, some current implementations of SSL may still be vulnerable.

Internal analysis found that NorthStar uses a version of the Erlang programming language which is known to be vulnerable to ROBOT.

Affected releases are Juniper Networks NorthStar Controller:

• 3.0 versions prior to 3.0.1;
• 3.2 versions prior to 3.2.1.

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

This issue was discovered during an external security research.

This issue has been assigned  CVE-2017-1000385 .
 

Erlang has been updated to version 18.3.4.7 which resolves this issue.

The following software releases have been updated to resolve this vulnerability: NorthStar 3.0.1, 3.2.1, 4.0.0, and all subsequent releases.

This issue is being tracked as  1329222  which is visible on the Customer Support website.

Note: Juniper SIRT's  policy  is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).
 

Software Releases, patches and updates are available at  https://www.juniper.net/support/downloads/ .
 

Disable use of TLS ciphers that rely on RSA for key exchange.
 

• 2018-04-11: Initial Publication

• KB16613: Overview of the Juniper Networks SIRT Monthly Security Bulletin Publication Process [juniper.net]
• KB16765: In which releases are vulnerabilities fixed? [juniper.net]
• KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories [juniper.net]
• Report a Vulnerability - How to Contact the Juniper Networks Security Incident Response Team
• https://robotattack.org/