D-Link DIR-878 1.12A1 HNAP API /HNAP1 SetWebFilterSettings WebFilterURLs command injection

Summaryinfo

A vulnerability classified as critical was found in D-Link DIR-878 1.12A1. This affects the function SetWebFilterSettings of the file /HNAP1 of the component HNAP API. Executing a manipulation of the argument WebFilterURLs can lead to command injection. This vulnerability appears as CVE-2019-8316. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in D-Link DIR-878 1.12A1 (Router Operating System). It has been declared as critical. This vulnerability affects the function SetWebFilterSettings of the file /HNAP1 of the component HNAP API. The manipulation of the argument WebFilterURLs with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered on D-Link DIR-878 devices with firmware 1.12A1. This issue is a Command Injection allowing a remote attacker to execute arbitrary code, and get a root shell. A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted /HNAP1 POST request. This occurs when any HNAP API function triggers a call to the system function with untrusted input from the request body for the SetWebFilterSettings API function, as demonstrated by shell metacharacters in the WebFilterURLs field.

The bug was discovered 02/12/2019. The weakness was presented 02/13/2019. This vulnerability was named CVE-2019-8316 since 02/12/2019. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation requires a single authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/10/2023). This vulnerability is assigned to T1202 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-130861, VDB-130860, VDB-130859 and VDB-130857 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-878

Version

• 1.12A1

License

• commercial

Website

• Vendor: https://www.dlink.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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