CVE-2020-9015

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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 98%
VendorProductVersion
aristadcs-7050qx-32s-r_firmware
4.20.9m:m
aristadcs-7050cx3-32s-r_firmware
4.20.11m:m
aristadcs-7280sram-48c6-r_firmware
4.22.0.1f:f
𝑥
= Vulnerable software versions
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/