Vulnerability Details : 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 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.
Exploit prediction scoring system (EPSS) score for CVE-2017-14116
Probability of exploitation activity in the next 30 days: 0.75%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 79 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-14116
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST |
|
8.1
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2017-14116
-
The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-14116
-
https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/
Bugs in Arris Modems Distributed by AT&T Vulnerable to Trivial Attacks | ThreatpostThird Party Advisory
-
https://www.nomotion.net/blog/sharknatto/
Exploit;Mitigation;Technical Description;Third Party Advisory
-
http://www.securityfocus.com/bid/100585
AT&T U-verse Arris Modems Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
Products affected by CVE-2017-14116
- cpe:2.3:o:att:u-verse_firmware:9.2.2h0d83:*:*:*:*:*:*:*