TP-LINK TL-WDR5620 up to 3.0 citycode command injection

Summaryinfo

A vulnerability classified as critical has been found in TP-LINK TL-WDR5620 up to 3.0. Impacted is an unknown function. Performing a manipulation of the argument citycode results in command injection. This vulnerability is cataloged as CVE-2019-6487. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in TP-LINK TL-WDR5620 up to 3.0 (Router Operating System). It has been classified as critical. This affects some unknown processing. The manipulation of the argument citycode with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

TP-Link WDR Series devices through firmware v3 (such as TL-WDR5620 V3.0) are affected by command injection (after login) leading to remote code execution, because shell metacharacters can be included in the weather get_weather_observe citycode field.

The bug was discovered 01/17/2019. The weakness was shared 01/18/2019 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2019-6487 since 01/18/2019. It is possible to initiate the attack remotely. Required for exploitation is a authentication. Technical details are known, but no exploit is available. 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 1 days. During that time the estimated underground price was around $0-$5k.

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

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

Productinfo

Type

• Router Operating System

Vendor

• TP-LINK

Name

• TL-WDR5620

Version

• 3.0

License

• commercial

Website

• Vendor: https://www.tp-link.com/

CPE 2.3info

• 🔍

CPE 2.2info

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Entryinfo

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

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