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Vulnerability CVE-2018-3954
Published: 2018-10-16 Modified: 2018-10-17
| 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. |
Type:
CWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
)
CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
9/10 |
10/10 |
8/10 |
| Exploit range |
Attack complexity |
Authentication |
Remote |
Low |
Single time |
| Confidentiality impact |
Integrity impact |
Availability impact |
Complete |
Complete |
Complete |
References: |
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0625
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