CVE-2022-27641: (Pwn2Own) Netgear R6700v3 NetUSB Integer Overflow Remote Code Execution Vulnerability
First published: Wed Mar 29 2023(Updated: )
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15806.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR R6700v3 firmware | ||
| NETGEAR D7800 | <1.0.1.68 | |
| NETGEAR D7800 Firmware | ||
| NETGEAR EX6200 firmware | <1.0.1.90 | |
| NETGEAR EX6200 | =v2 | |
| NETGEAR EX8000 | <1.0.1.240 | |
| NETGEAR EX8000 | ||
| NETGEAR R6220 firmware | <1.1.0.112 | |
| NETGEAR R6220 firmware | ||
| NETGEAR R6230 firmware | <1.1.0.112 | |
| NETGEAR R6230 firmware | ||
| NETGEAR R6400 firmware | <1.0.4.122 | |
| NETGEAR R6400 firmware | =v2 | |
| Netgear R6700 Firmware | <1.0.4.122 | |
| NETGEAR R6700v1 firmware | =v3 | |
| NETGEAR R7000 firmware | <1.0.11.130 | |
| NETGEAR R7000 firmware | ||
| NETGEAR R7800 firmware | <1.0.2.90 | |
| NETGEAR R7800 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-27641?
CVE-2022-27641 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 routers.
How severe is CVE-2022-27641?
CVE-2022-27641 has a severity rating of 8.8 out of 10, indicating a high severity.
How can an attacker exploit CVE-2022-27641?
An attacker can exploit CVE-2022-27641 without authentication by sending malicious packets to the vulnerable router's NetUSB module.
Is authentication required to exploit CVE-2022-27641?
No, authentication is not required to exploit CVE-2022-27641.
Are there any mitigation steps available for CVE-2022-27641?
Yes, updating the firmware of the NETGEAR R6700v3 router to a patched version will mitigate the vulnerability.
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