CVE-2020-9015

EPSS 16.5%

Vexday Risk Score

23Low

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Functional exploit

Automatable exploit available (Nuclei/Metasploit).

CVSS —EPSS 16.5%KEV nãoPoC —Nuclei —Metasploit simPatch —

Lifecycle

02 Feb 2020Metasploit module available

20 Feb 2020Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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

Affected products

n/a · n/a

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/