VDB-116921 · CVE-2018-1143 · Snort 46510

Belkin N750 1.10.22 HTTP Request twonky_command.cgi command injection

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.
9.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Belkin N750 1.10.22. It has been rated as critical. This affects an unknown part of the file twonky_command.cgi of the component HTTP Request Handler. The manipulation leads to command injection. This vulnerability is documented as CVE-2018-1143. The attack can be initiated remotely. There is not any exploit available. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Belkin N750 1.10.22 (Wireless LAN Software). This issue affects an unknown function of the file twonky_command.cgi of the component HTTP Request Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A remote unauthenticated user can execute commands as root in the Belkin N750 using firmware version 1.10.22 by sending a crafted HTTP request to twonky_command.cgi.

The bug was discovered 04/16/2018. The weakness was released 04/19/2018 (Website). The advisory is shared at tenable.com. The identification of this vulnerability is CVE-2018-1143 since 12/05/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/30/2020). MITRE ATT&CK project uses the attack technique T1202 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k.

Addressing this vulnerability is possible by firewalling . Attack attempts may be identified with Snort ID 46510.

Entries connected to this vulnerability are available at VDB-116922, VDB-116923 and VDB-116924. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Wireless LAN Software

Vendor

Belkin

Name

N750

Version

1.10.22

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.7

VulDB Base Score: 9.8
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍
Snort ID: 46510
Snort Message: SERVER-WEBAPP Belkin N750 F9K1103 wireless router command injection attempt
Snort Class: 🔍

Timelineinfo

12/05/2017 🔍
04/16/2018 +132 days 🔍
04/19/2018 +2 days 🔍
04/19/2018 +0 days 🔍
04/21/2018 +2 days 🔍
01/30/2020 +649 days 🔍

Sourcesinfo

Advisory: tenable.com
Status: Not defined

CVE: CVE-2018-1143 (🔍)
GCVE (CVE): GCVE-0-2018-1143
GCVE (VulDB): GCVE-100-116921
See also: 🔍

Entryinfo

Created: 04/21/2018 16:13
Updated: 01/30/2020 11:11
Changes: 04/21/2018 16:13 (63), 01/30/2020 11:11 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.