ZDI-22-520: (Pwn2Own) NETGEAR R6700v3 Improper Certificate Validation Vulnerability
This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R6700v3 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloading of files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR R6700v3 firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-520?
The severity of ZDI-22-520 is considered high due to the potential for network-adjacent attackers to compromise the integrity of downloaded information.
How do I fix ZDI-22-520?
To fix ZDI-22-520, update the firmware of your NETGEAR R6700v3 router to the latest version provided by NETGEAR.
What type of attacks can exploit ZDI-22-520?
ZDI-22-520 can be exploited by network-adjacent attackers who can manipulate the integrity of files downloaded from the affected router.
Is authentication required to exploit ZDI-22-520?
No, authentication is not required to exploit the ZDI-22-520 vulnerability.
What devices are affected by ZDI-22-520?
ZDI-22-520 specifically affects NETGEAR R6700v3 routers running affected firmware versions.
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- collector/zdi-advisory
- source/ZDI
- alias/ZDI-22-520
- alias/ZDI-CAN-15797
- alias/CVE-2022-27644
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
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- canonical/netgear r6700v3 firmware