CVE-2020-15634: NETGEAR R6700 httpd strtblupgrade Format String Remote Code Execution Vulnerability
First published: Wed Aug 19 2020(Updated: )
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 routers with firmware 1.0.4.84_10.0.58. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of string table file uploads. The issue results from the lack of proper validation of a user-supplied string before using it as a format specifier. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-9755.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netgear R6700 Firmware | <1.0.4.98 | |
| NETGEAR R6700 | =v3 | |
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Reference Links
Frequently Asked Questions
What is CVE-2020-15634?
CVE-2020-15634 is a vulnerability in NETGEAR R6700 routers that allows network-adjacent attackers to execute arbitrary code.
How can attackers exploit CVE-2020-15634?
Attackers can exploit CVE-2020-15634 by uploading a malicious string table file.
Is authentication required to exploit CVE-2020-15634?
No, authentication is not required to exploit CVE-2020-15634.
What is the severity of CVE-2020-15634?
CVE-2020-15634 has a severity rating of 6.3 (Medium).
How can I fix CVE-2020-15634?
To fix CVE-2020-15634, you should update the firmware of your NETGEAR R6700 router to version 1.0.4.98 or later.
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