TP-LINK WVR/WAR/ER ipmac_import.lua new-zone command injection

Summaryinfo

A vulnerability has been found in TP-LINK WVR, WAR and ER and classified as critical. This affects an unknown part of the file ipmac_import.lua. This manipulation of the argument new-zone as part of Variable causes command injection. This vulnerability is handled as CVE-2017-15620. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in TP-LINK WVR, WAR and ER (Wireless LAN Software) (the affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown part of the file ipmac_import.lua. The manipulation of the argument new-zone as part of a Variable 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:

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

The bug was discovered 01/10/2018. The weakness was released 01/11/2018 as not defined posting (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2017-15620 since 10/19/2017. The attack can be launched remotely. A single authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

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.

Entries connected to this vulnerability are available at VDB-111744, VDB-111745, VDB-111746 and VDB-111747. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Wireless LAN Software

Vendor

• TP-LINK

Name

• ER
• WAR
• WVR

License

• commercial

Website

• Vendor: https://www.tp-link.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