VDB-106094 · CVE-2017-14116 · BID 100585

AT&T U-verse up to 9.2.2h0d83 on NVG599 IP Passthrough Mode Empty Password hard-coded credentials

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability, which was classified as critical, has been found in AT&T U-verse up to 9.2.2h0d83 on NVG599. Affected by this issue is some unknown functionality of the component IP Passthrough Mode. The manipulation as part of a Empty Password leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 08/31/2017. The weakness was shared 09/03/2017 (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2017-14116 since 09/03/2017. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1110.001 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102916 (AT&T U-verse Arris Modems NVG589 / NVG599 / 5268AC Multiple Vulnerabilities (SharknATTo)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r.

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at Tenable (102916). The entries 106092, 106093 and 106095 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
ATT&CK: T1110.001

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102916
Nessus Name: AT&T U-verse Arris Modems NVG589 / NVG599 / 5268AC Multiple Vulnerabilities (SharknATTo)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/31/2017 🔍
08/31/2017 +0 days 🔍
09/01/2017 +1 days 🔍
09/03/2017 +2 days 🔍
09/03/2017 +0 days 🔍
09/03/2017 +0 days 🔍
09/04/2017 +1 days 🔍
01/10/2021 +1224 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Nomotion
Status: Not defined

CVE: CVE-2017-14116 (🔍)
SecurityFocus: 100585

See also: 🔍

Entryinfo

Created: 09/04/2017 09:02
Updated: 01/10/2021 16:08
Changes: 09/04/2017 09:02 (69), 12/29/2019 17:06 (1), 01/10/2021 16:08 (4)
Complete: 🔍

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