VDB-106572 · CVE-2017-14421 · OpenVAS 103340

D-Link DIR-850L up to FW208WWb02 Telnet Service Password hard-coded credentials

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.3$0-$5k0.00

Summaryinfo

A vulnerability was found in D-Link DIR-850L up to FW208WWb02 and classified as critical. This issue affects some unknown processing of the component Telnet Service. The manipulation of the argument Password with the input wrgac25_dlink.2013gui_dir850l results in hard-coded credentials. This vulnerability is reported as CVE-2017-14421. The attack can be launched remotely. No exploit exists. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in D-Link DIR-850L up to FW208WWb02 (Router Operating System). Affected is an unknown code of the component Telnet Service. The manipulation of the argument password with the input value wrgac25_dlink.2013gui_dir850l leads to a hard-coded credentials vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

D-Link DIR-850L REV. B (with firmware through FW208WWb02) devices have a hardcoded password of wrgac25_dlink.2013gui_dir850l for the Alphanetworks account upon device reset, which allows remote attackers to obtain root access via a TELNET session.

The bug was discovered 09/08/2017. The weakness was disclosed 09/13/2017 (Website). The advisory is shared for download at pierrekim.github.io. This vulnerability is traded as CVE-2017-14421 since 09/13/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1110.001.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $5k-$25k.

It is possible to mitigate the weakness by firewalling tcp/23 (telnet).

The entries VDB-106564, VDB-106565, VDB-106566 and VDB-106567 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

OpenVAS ID: 103340
OpenVAS Name: D-Link 850L XSS / Backdoor / Code Execution Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

09/08/2017 🔍
09/13/2017 +5 days 🔍
09/13/2017 +0 days 🔍
09/13/2017 +0 days 🔍
09/14/2017 +1 days 🔍
11/15/2019 +792 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: pierrekim.github.io
Status: Not defined

CVE: CVE-2017-14421 (🔍)
GCVE (CVE): GCVE-0-2017-14421
GCVE (VulDB): GCVE-100-106572
See also: 🔍

Entryinfo

Created: 09/14/2017 09:00
Updated: 11/15/2019 20:52
Changes: 09/14/2017 09:00 (61), 11/15/2019 20:52 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!