CVE-2021-40867: High severity Netgear Gc108p Firmware vulnerability
Certain NETGEAR smart switches are affected by an authentication hijacking race-condition vulnerability by an unauthenticated attacker who uses the same source IP address as an admin in the process of logging in (e.g., behind the same NAT device, or already in possession of a foothold on an admin's machine). This occurs because the multi-step HTTP authentication process is effectively tied only to the source IP address. This affects GC108P before 1.0.8.2, GC108PP before 1.0.8.2, GS108Tv3 before 7.0.7.2, GS110TPP before 7.0.7.2, GS110TPv3 before 7.0.7.2, GS110TUP before 1.0.5.3, GS308T before 1.0.3.2, GS310TP before 1.0.3.2, GS710TUP before 1.0.5.3, GS716TP before 1.0.4.2, GS716TPP before 1.0.4.2, GS724TPP before 2.0.6.3, GS724TPv2 before 2.0.6.3, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS750E before 1.0.1.10, GS752TPP before 6.0.8.2, GS752TPv2 before 6.0.8.2, MS510TXM before 1.0.4.2, and MS510TXUP before 1.0.4.2.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this NETGEAR smart switches vulnerability?
The vulnerability ID for this NETGEAR smart switches vulnerability is CVE-2021-40867.
What is the severity of CVE-2021-40867?
The severity of CVE-2021-40867 is high with a severity value of 7.1.
Which NETGEAR smart switches are affected by CVE-2021-40867?
The affected NETGEAR smart switches are Netgear Gc108p Firmware (up to version 1.0.8.2), Netgear Gc108pp Firmware (up to version 1.0.8.2), Netgear Gs108t Firmware (up to version 7.0.7.2), Netgear Gs110tpp Firmware (up to version 7.0.7.2), Netgear Gs110tp Firmware (up to version 7.0.7.2), Netgear Gs110tup Firmware (up to version 1.0.5.3), Netgear Gs308t Firmware (up to version 1.0.3.2), Netgear Gs310tp Firmware (up to version 1.0.3.2), Netgear Gs710tup Firmware (up to version 1.0.5.3), Netgear Gs716tp Firmware (up to version 1.0.4.2), Netgear Gs716tpp Firmware (up to version 1.0.4.2), Netgear Gs724tpp Firmware (up to version 2.0.6.3), Netgear Gs724tp Firmware (up to version 2.0.6.3), Netgear Gs728tpp Firmware (up to version 6.0.8.2), Netgear Gs728tp Firmware (up to version 6.0.8.2), Netgear Gs750e Firmware (up to version 1.0.1.10), Netgear Gs752tpp Firmware (up to version 6.0.8.2), Netgear Gs752tp Firmware (up to version 6.0.8.2), Netgear Ms510txm Firmware (up to version 1.0.4.2), and Netgear Ms510txup Firmware (up to version 1.0.4.2).
How does the authentication hijacking race-condition vulnerability work?
The authentication hijacking race-condition vulnerability allows an unauthenticated attacker who uses the same source IP address as an admin to hijack the admin's authentication process.
Are there any fixes available for CVE-2021-40867?
Yes, NETGEAR has provided security advisories and fixes for the affected smart switches. Please refer to the following references: [link1](https://kb.netgear.com/000063978/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Smart-Switches-PSV-2021-0140-PSV-2021-0144-PSV-2021-0145) and [link2](https://gynvael.coldwind.pl/?id=741) for more information.