Critical severity · published Feb 20, 2020
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+…
9.8
CVSS
16.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)16.5% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dcs-7050cx3-32s-r Firmware · Arista
4.20.11m · source: NVD
DF
Dcs-7050qx-32s-r Firmware · Arista
4.20.9m · source: NVD
DF
Dcs-7280sram-48c6-r Firmware · Arista
4.22.0.1f · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9015
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-9015
packetstormsecurity.com
http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html
eos.arista.com
https://eos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/
Third Party Advisory
https://securitybytes.me
Broken Link
https://securitybytes.me/posts/cve-2020-9015/