Meinberg NTP Time Server Security Updates

Number: AV16-110
Date: 7 July 2016

Purpose

This advisory is to bring attention to a recently released Meinberg NTP firmware update addressing multiple vulnerabilities.

Assessment

A firmware update was released for Meinberg NTP Time Server to address multiple vulnerabilities (high).  Exploitation of these vulnerabilities may permit a malicious attacker to write to unspecified scripts with root user privilege, which can allow for the unauthorized disclosure and/or modification of sensitive data.

CVE References: CVE-2016-3962, CVE-2016-3988, CVE-2016-3989

Versions affected:

Suggested Action

CCIRC recommends that system administrators test and deploy the vendor-released updates to affected applications accordingly.

References:

Meinberg Security Advisory:
https://www.meinbergglobal.com/english/sw/mbgsecurityadvisory.htm#mbgsa_363

Meinberg Firmware Updates:
https://www.meinbergglobal.com/english/sw/firmware.htm

ICS-CERT Advisory (ICSA-16-175-03):
https://ics-cert.us-cert.gov/advisories/ICSA-16-175-03

NIST Vulnerability Database:
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-3962
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-3988
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-3989

Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.
http://www.publicsafety.gc.ca/cnt/ntnl-scrt/cbr-scrt/_fl/CCIRCPublicPGPKey.txt

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589
E-mail: ps.communications-communications.sp@canada.ca

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