CVE-2017-3882

Critical

Description

A vulnerability in the Universal Plug-and-Play (UPnP) implementation in the Cisco CVR100W Wireless-N VPN Router could allow an unauthenticated, Layer 2-adjacent attacker to execute arbitrary code or cause a denial of service (DoS) condition. The remote code execution could occur with root privileges. The vulnerability is due to incomplete range checks of the UPnP input data, which could result in a buffer overflow. An attacker could exploit this vulnerability by sending a malicious request to the UPnP listening port of the targeted device. An exploit could allow the attacker to cause the device to reload or potentially execute arbitrary code with root privileges. This vulnerability affects all firmware releases of the Cisco CVR100W Wireless-N VPN Router prior to Firmware Release 1.0.1.22. Cisco Bug IDs: CSCuz72642.

SeverityCritical
CVSS9.6
Exploit probability—
ProductCisco Small Business Rv Router Firmware
PublishedMay 16, 2017
First seenMay 16, 2017

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
cisco small_business_rv_router_firmware1.0.0.30, 1.0.1.9, 1.0.1.19, 1.0.2.6, 1.0.3.10, 1.0.4.10, 1.0.4.14, 1.0.5.4, 1.0.5.4\(gd\), 1.0.5.5, 1.0.5.6, 1.0.5.8, 1.0.6.6, 1.0.39—
cisco small_business_rv_router_firmware_1.00.2—

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