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.

CVSS v3.0 8.1 HIGH
CVSS v2.0 9.3 HIGH

8.1^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.3^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.nomotion.net/blog/sharknatto/	Exploit Mitigation Technical Description Third Party Advisory
https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/	Third Party Advisory
http://www.securityfocus.com/bid/100585	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:att:u-verse_firmware:9.2.2h0d83:*:*:*:*:*:*:*

cpe:2.3:h:arris:nvg599:-:*:*:*:*:*:*:*

Information

Published : 2017-09-03 12:29

Updated : 2017-09-13 06:25

NVD link : CVE-2017-14116

Mitre link : CVE-2017-14116

JSON object : View

CWE

CWE-798

Use of Hard-coded Credentials

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Products Affected

att

u-verse_firmware

arris

nvg599

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