Netgear WNR2000v5 apply.cgi input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Netgear WNR2000v5. This vulnerability affects unknown code of the file apply.cgi. The manipulation results in input validation. This vulnerability is cataloged as CVE-2016-10176. The attack may be launched remotely. Furthermore, there is an exploit available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Netgear WNR2000v5 (Wireless LAN Software) (version unknown). Affected is an unknown function of the file apply.cgi. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The NETGEAR WNR2000v5 router allows an administrator to perform sensitive actions by invoking the apply.cgi URL on the web server of the device. This special URL is handled by the embedded web server (uhttpd) and processed accordingly. The web server also contains another URL, apply_noauth.cgi, that allows an unauthenticated user to perform sensitive actions on the device. This functionality can be exploited to change the router settings (such as the answers to the password-recovery questions) and achieve remote code execution.

The bug was discovered 01/30/2017. The weakness was shared 01/30/2017 by Pedro Ribeiro (Website). The advisory is shared for download at kb.netgear.com. This vulnerability is traded as CVE-2016-10176 since 01/29/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as highly functional. As 0-day the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11760 (NETGEAR WNR2000 Remote Code Execution Vulnerability).

It is possible to mitigate the weakness by firewalling . Attack attempts may be identified with Snort ID 41095.

The vulnerability is also documented in the databases at Exploit-DB (40949) and SecurityFocus (BID 95867†). The entries VDB-96262 and VDB-96263 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.3

VulDB Base Score: 7.3
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 902518
OpenVAS Name: NETGEAR WNR2000 Router Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: netgear_wnr2000_pass_recovery.rb
MetaSploit Name: NETGEAR WNR2000v5 Administrator Password Recovery
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍
Snort ID: 41095
Snort Message: SERVER-WEBAPP Netgear WNR2000 authentication bypass attempt
Snort Class: 🔍

Timelineinfo

01/29/2017 🔍
01/29/2017 +0 days 🔍
01/30/2017 +1 days 🔍
01/30/2017 +0 days 🔍
01/30/2017 +0 days 🔍
01/30/2017 +0 days 🔍
05/16/2026 +3393 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: kb.netgear.com
Researcher: Pedro Ribeiro
Status: Not defined

CVE: CVE-2016-10176 (🔍)
GCVE (CVE): GCVE-0-2016-10176
GCVE (VulDB): GCVE-100-96264
SecurityFocus: 95867 - Netgear WNR2000 Multiple Security Vulnerabilities
OSVDB: - CVE-2016-10176 - NETGEAR - WNR2000v5 - Privilege Escalation Issue

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/30/2017 17:27
Updated: 05/16/2026 23:21
Changes: 01/30/2017 17:27 (71), 08/07/2020 12:08 (9), 07/01/2024 10:25 (17), 05/16/2026 23:21 (4)
Complete: 🔍
Cache ID: 216::103

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