Description
The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG589 and NVG599 devices, when IP Passthrough mode is not used, configures ssh-permanent-enable WAN SSH logins to the remotessh account with the 5SaP9I26 password, which allows remote attackers to access a "Terminal shell v1.0" service, and subsequently obtain unrestricted root privileges, by establishing an SSH session and then entering certain shell metacharacters and BusyBox commands.
Metrics
CVSS 3.0 8.1/10
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.securityfocus.com/bid/100585Third Party Advisory, VDB Entry
- https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/Third Party Advisory
- https://www.nomotion.net/blog/sharknatto/Exploit, Mitigation, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/100585Third Party Advisory, VDB Entry
- https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/Third Party Advisory
- https://www.nomotion.net/blog/sharknatto/Exploit, Mitigation, Technical Description, Third Party Advisory
Timeline
- Published
- Sep 3, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified