CVE-2020-15636: NETGEAR Multiple Routers check_ra Stack-based Buffer Overflow Remote Code Execution Vulnerability
First published: Wed Aug 19 2020(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR R6400, R6700, R7000, R7850, R7900, R8000, RS400, and XR300 routers with firmware 1.0.4.84_10.0.58. Authentication is not required to exploit this vulnerability. The specific flaw exists within the check_ra service. A crafted raePolicyVersion in a RAE_Policy.json file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9852.
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-2020-15636?
CVE-2020-15636 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of NETGEAR R6400, R6700, R7000, R7850, R7900, R8000, RS400, and XR300 routers with firmware 1.0.4.84_10.0.58.
How severe is CVE-2020-15636?
CVE-2020-15636 has a severity rating of 9.8 (Critical).
Do I need authentication to exploit CVE-2020-15636?
No, authentication is not required to exploit CVE-2020-15636.
What is the affected software?
The affected software includes NETGEAR R6400, R6700, R7000, R7850, R7900, R8000, RS400, and XR300 routers with firmware 1.0.4.84_10.0.58.
How can I fix CVE-2020-15636?
To fix CVE-2020-15636, apply the firmware update provided by NETGEAR.
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