D-Link DIR-823G ExportSettings.sh access control

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 categorized as critical has been discovered in D-Link DIR-823G. Affected is an unknown function of the file ExportSettings.sh. Such manipulation leads to access control. This vulnerability is documented as CVE-2018-17786. The attack can be executed remotely. There is not any exploit available. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability, which was classified as critical, has been found in D-Link DIR-823G (Router Operating System) (affected version unknown). Affected by this issue is an unknown functionality of the file ExportSettings.sh. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

On D-Link DIR-823G devices, ExportSettings.sh, upload_settings.cgi, GetDownLoadSyslog.sh, and upload_firmware.cgi do not require authentication, which allows remote attackers to execute arbitrary code.

The bug was discovered 10/01/2018. The weakness was released 10/02/2018 (Website). The advisory is available at xz.aliyun.com. This vulnerability is handled as CVE-2018-17786 since 09/30/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/29/2020). This vulnerability is assigned to T1068 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 $5k-$25k.

Addressing this vulnerability is possible by firewalling .

Entry connected to this vulnerability is available at VDB-124707. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/30/2018 🔍
10/01/2018 +1 days 🔍
10/02/2018 +0 days 🔍
10/02/2018 +0 days 🔍
10/03/2018 +1 days 🔍
03/29/2020 +543 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: xz.aliyun.com
Status: Not defined

CVE: CVE-2018-17786 (🔍)
GCVE (CVE): GCVE-0-2018-17786
GCVE (VulDB): GCVE-100-124706
See also: 🔍

Entryinfo

Created: 10/03/2018 07:39
Updated: 03/29/2020 09:21
Changes: 10/03/2018 07:39 (59), 03/29/2020 09:21 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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