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CVE-2020-9015

9.8 · CRITICAL

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow attackers to bypass intended TACACS+ shell restrictions vi…

Published Feb 20, 2020EPSS 16.46%

Overview

CVE-2020-9015 is a critical-severity vulnerability. It was published on February 20, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly permissive regular expression in the TACACS+ server permitted commands

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

Refpacketstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.htmlRefeos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/Refsecuritybytes.meRefsecuritybytes.me/posts/cve-2020-9015/Refpacketstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.htmlRefeos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/Refsecuritybytes.meRefsecuritybytes.me/posts/cve-2020-9015/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-9015?

CVE-2020-9015 is a critical-severity vulnerability. It was published on February 20, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2020-9015?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-9015?

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-2020-9015?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-9015 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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