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CVE-2018-3954

nvd nist
Published: Oct 17, 2018Modified: Nov 21, 2024

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7.2
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.2 / Impact: 5.9
Source: NVD

Description

Devices in the Linksys ESeries line of routers (Linksys E1200 Firmware Version 2.0.09 and Linksys E2500 Firmware Version 3.0.04) are susceptible to OS command injection vulnerabilities due to improper filtering of data passed to and retrieved from NVRAMData entered into the 'Router Name' input field through the web portal is submitted to apply.cgi as the value to the 'machine_name' POST parameter. When the 'preinit' binary receives the SIGHUP signal it enters a code path that calls a function named 'set_host_domain_name' from its libshared.so shared object.

Affected (2)

Linksys
2 products
E1200 Firmware
E2500 Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
E1200 Firmware
Version 2.0.09
Running on/withPlatform Versions
Linksys
E1200
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
E2500 Firmware
Version 3.0.04
Running on/withPlatform Versions
Linksys
E2500
All versions

Related CWEs

CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

References (2)

Source: talos-cna@cisco.com
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.