Vulnerability 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
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Arista | Dcs-7050Qx-32S-R Firmware | 4.20.9m |
| Arista | Dcs-7050Qx-32S-R | - |
| Arista | Dcs-7050Cx3-32S-R Firmware | 4.20.11m |
| Arista | Dcs-7050Cx3-32S-R | - |
| Arista | Dcs-7280Sram-48C6-R Firmware | 4.22.0.1f |
| Arista | Dcs-7280Sram-48C6-R | - |
References
- http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privi
- https://eos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/
- https://securitybytes.meThird Party Advisory
- https://securitybytes.me/posts/cve-2020-9015/Broken Link
- http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privi
- https://eos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/
- https://securitybytes.meThird Party Advisory
- https://securitybytes.me/posts/cve-2020-9015/Broken Link
FAQ
What is CVE-2020-9015?
CVE-2020-9015 is a vulnerability with a CVSS score of 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 via a...
How severe is CVE-2020-9015?
CVE-2020-9015 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-9015?
Check the references section above for vendor advisories and patch information. Affected products include: Arista Dcs-7050Qx-32S-R Firmware, Arista Dcs-7050Qx-32S-R, Arista Dcs-7050Cx3-32S-R Firmware, Arista Dcs-7050Cx3-32S-R, Arista Dcs-7280Sram-48C6-R Firmware.