High severity · published Sep 3, 2017
CVE-2017-14116
The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG599 device, when IP Passthrough mode is not used, configures WAN access to a caserver https service with the tech account and…
8.1
CVSS
3.3%
EPSS
No
On KEV
Description
The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG599 device, when IP Passthrough mode is not used, configures WAN access to a caserver https service with the tech account and an empty password, which allows remote attackers to obtain root privileges by establishing a session on port 49955 and then installing new software, such as BusyBox with "nc -l" support.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UF
U-verse Firmware · Att
9.2.2h0d83 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-14116
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-14116
Third Party Advisory
http://www.securityfocus.com/bid/100585
Third Party Advisory
https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/
Exploit
https://www.nomotion.net/blog/sharknatto/
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