CVE-2020-15636: 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_1...

Summary

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 t...

What to do

Update netgear r6700_firmware to version 1.0.4.98 or later.

Affected software

Vendor	Product	Affected versions
netgear	r6700_firmware	< 1.0.4.98 `cpe:2.3:o:netgear:r6700_firmware::::::::`

Original advisory text

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_1...

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.

References

https://kb.netgear.com/000062128/Security-Advisory-for-Pre-Authentication-Stack-... Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-937/ Third Party Advisory VDB Entry