D-Link DIR-818LW 2.06betab01 HNAP1 MTU command injection

Summaryinfo

A vulnerability was found in D-Link DIR-818LW 2.06betab01. It has been classified as critical. This affects an unknown function of the component HNAP1. This manipulation of the argument MTU as part of Shell Metacharacter causes command injection. This vulnerability is registered as CVE-2019-13481. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in D-Link DIR-818LW 2.06betab01 (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown code block of the component HNAP1. The manipulation of the argument MTU as part of a Shell Metacharacter 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. The summary by CVE is:

An issue was discovered on D-Link DIR-818LW devices with firmware 2.06betab01. There is a command injection in HNAP1 (exploitable with Authentication) via shell metacharacters in the MTU field to SetWanSettings.

The weakness was published 07/10/2019 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2019-13481 since 07/10/2019. The exploitation appears to be easy. The attack can be launched remotely. The requirement for exploitation is a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/24/2023). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

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

Similar entry is available at VDB-137696. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-818LW

Version

• 2.06betab01

License

• commercial

Website

• Vendor: https://www.dlink.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion