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CVE-2017-16957

8.8 · HIGH

TP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allow remote authenticated users to execute arbitrary commands via shell metacharacters in the iface field of an admin/diagnostic command to cgi-bin/…

Published Nov 27, 2017CWE-78EPSS 5.64%

Overview

CVE-2017-16957 is a high-severity vulnerability. It was published on November 27, 2017 and has a CVSS 3.0 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

TP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allow remote authenticated users to execute arbitrary commands via shell metacharacters in the iface field of an admin/diagnostic command to cgi-bin/luci, related to the zone_get_effect_devices function in /usr/lib/lua/luci/controller/admin/diagnostic.lua in uhttpd.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/101968GitHubgithub.com/coincoin7/Wireless-Router-Vulnerability/blob/master/TplinkDiagnosticAuthenticatedRCE.txtRefwww.securityfocus.com/bid/101968GitHubgithub.com/coincoin7/Wireless-Router-Vulnerability/blob/master/TplinkDiagnosticAuthenticatedRCE.txt

How CyberStrike helps

Frequently asked questions

What is CVE-2017-16957?

CVE-2017-16957 is a high-severity vulnerability. It was published on November 27, 2017 and has a CVSS 3.0 base score of 8.8 (HIGH).

How severe is CVE-2017-16957?

This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-16957?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-16957?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-16957 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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