TP-LINK WVR/WAR/ER pptp_client.lua new-enable command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in TP-LINK WVR, WAR and ER. Affected by this vulnerability is an unknown functionality of the file pptp_client.lua. The manipulation of the argument new-enable as part of Variable leads to command injection. This vulnerability is traded as CVE-2017-15618. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in TP-LINK WVR, WAR and ER (Wireless LAN Software) (affected version unknown) and classified as critical. This issue affects an unknown functionality of the file pptp_client.lua. The manipulation of the argument new-enable as part of a Variable 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:

TP-Link WVR, WAR and ER devices allow remote authenticated administrators to execute arbitrary commands via command injection in the new-enable variable in the pptp_client.lua file.

The bug was discovered 01/10/2018. The weakness was shared 01/11/2018 as not defined posting (Bugtraq). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2017-15618 since 10/19/2017. The attack may be initiated remotely. The successful exploitation needs a simple 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.

The entries VDB-111744, VDB-111745, VDB-111746 and VDB-111747 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Wireless LAN Software

Vendor

• TP-LINK

Name

• ER
• WAR
• WVR

License

• commercial

Website

• Vendor: https://www.tp-link.com/

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Entryinfo

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