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CVE-2017-3891

9.6 · CRITICAL

In BlackBerry QNX Software Development Platform (SDP) 6.6.0, an elevation of privilege vulnerability in the default configuration of the QNX SDP with QNet enabled on networks comprising two or more…

Published Nov 14, 2017CWE-923EPSS 1.28%

Overview

CVE-2017-3891 is a critical-severity vulnerability. It was published on November 14, 2017 and has a CVSS 3.1 base score of 9.6 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In BlackBerry QNX Software Development Platform (SDP) 6.6.0, an elevation of privilege vulnerability in the default configuration of the QNX SDP with QNet enabled on networks comprising two or more QNet nodes could allow an attacker to access local and remote files or take ownership of files on other QNX nodes regardless of permissions by executing commands targeting arbitrary nodes from a secondary QNX 6.6.0 QNet node.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsupport.blackberry.com/kb/articleDetail?articleNumber=000046674Refwww.midnightbluelabs.com/blog/2017/12/8/elevation-of-privilege-vulnerability-in-qnx-qnetRefsupport.blackberry.com/kb/articleDetail?articleNumber=000046674Refwww.midnightbluelabs.com/blog/2017/12/8/elevation-of-privilege-vulnerability-in-qnx-qnet

How CyberStrike helps

Frequently asked questions

What is CVE-2017-3891?

CVE-2017-3891 is a critical-severity vulnerability. It was published on November 14, 2017 and has a CVSS 3.1 base score of 9.6 (CRITICAL).

How severe is CVE-2017-3891?

This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-3891?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-3891?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-3891 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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