Vulnerability in Att U-Verse Firmware
CVE-2017-14115
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.044 (91.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000
Affected products
- Att U-Verse Firmware — versions 9.2.2h0d83
- Commscope Arris Nvg589
- Commscope Arris Nvg599
Weakness classification (CWE)
References
- threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-at… (Third Party Advisory)
- www.securityfocus.com/bid/100585 (VDB Entry, Third Party Advisory, vdb-entry)
- www.nomotion.net/blog/sharknatto/ (Technical Description, Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2017-14115?
- CVE-2017-14115 is a high-severity vulnerability in Att U-Verse Firmware, classified under Use of Hard-coded Credentials. CVSS score: 8.1/10. Published 2017-09-03.
- How severe is CVE-2017-14115?
- High severity. CVSS v3 base score is 8.1 out of 10.