CVE-2020-9015
9.8
CRITICAL · CVSS 3.1 · EPSS 16.5% (pctl 97)
Patch early
EPSS 16.5% — above the 10% action threshold.
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
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 16.46% — more likely to be exploited than 97% of all CVEs |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-02-20 |
| Last modified | 2026-06-17 |
Affected (6)
| Vendor | Product |
|---|---|
| arista | dcs-7050cx3-32s-r |
| arista | dcs-7050cx3-32s-r firmware |
| arista | dcs-7050qx-32s-r |
| arista | dcs-7050qx-32s-r firmware |
| arista | dcs-7280sram-48c6-r |
| arista | dcs-7280sram-48c6-r firmware |
References
- http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html
- https://eos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/
- https://securitybytes.me
- https://securitybytes.me/posts/cve-2020-9015/
- http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html
- https://eos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/
- https://securitybytes.me
- https://securitybytes.me/posts/cve-2020-9015/
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