All forum topics Previous Topic Next Topic. Is Netgear releasing firmware patches to address Dnsmasq vulnerabilities disclosed on 2 Oct. Message 1 of Labels: Firmware Security. Me too. Re: Is Netgear releasing firmware patches to address Dnsmasq vulnerabilities disclosed on 2 Oct. Hi tacoFeline Kindly submit your inquiry to techsupport. Message 2 of Eliane, Maybe it's time Netgear updated the whole OS's core modules.
Message 3 of Heap based overflow 2 bytes. Before 2. PoC and Instructions. Lack of free here. PoC and instructions. Invalid boundary checks here. Integer underflow leading to a huge memcpy. Bug collision with CVE Message 4 of Message 5 of Message 6 of Note: As routers typically do not perform automatic updates, you need to manually download and install the appropriate patches on the device.
Done incorrectly, applying the latest firmware can make your router unusable. We recommend this method for advanced users or computer technicians only. This is most likely a false positive from Avast. Vulnerability testing is done based on fingerprinting, ie.
There will be complaints forwver of Netgear does not update the code accordingly. Complete wrong approach to the issue. Query it using nslookup or dig - if the version returned is lower than 2. Server: UnKnown Address: As I mentioned in my posting earlier. If I already have the updated firmware installed I still get this message from Avast, why doesn't Netgear fix their code to correct the problem? As you can read between the lines at least from the mid June reply above Netgear does think their code is not vulnerable potentially due to the different SoC architectures, or dnsmasq features built-in.
Any auditor will check the dnsmasq version and mark this deep red - exactly what the vulnerability scanner rules do. Thanks schumaku. I did the dnsmasq check you ilustrated and version reported is older than 2. This even after a firmware update I downloaded and applied from Netgear quite recently. Surely it would be better for Netgear to push out firmware updates instead of getting a reputation and insecure routers and poor support service.
I have a Netgear Genie R so I am also affected by this. I opened tech support case and was just asked to upgrade the firmware. I am already running the latest firmware for this newly purchased model upgraded to latest during installation process , and the vulnerability is still detected. I get the same nslookup results of the equipment running older version of dnsmasq software.
No, these tools just detect the dnsmasq version. Android devices used as a Wi-Fi hotspot can be also affected. Solution Some of the vulnerabilities may be patched in new versions of the device firmware or system update. Applying the latest firmware or system update may solve the issue. Consult your device's manual for instructions. If an update adressing the vulnerability issue is not available, contact your devices's vendor or manufacturer to provide an update as soon as possible.
Note: As routers typically do not perform automatic updates, you need to manually download and install the appropriate patches on the device. Done incorrectly, applying the latest firmware can make your router unusable. We recommend this method for advanced users or computer technicians only. I had to expand on your IP blocks. I had written another script to go through the domains, but they have an abundance of subdomains that were troublesome on simple dig requests.
These blocks were identified with my other script, and looking a what Chrome's IPvFoo extension showed for active connections on IPv6. If you think the list is old, just watch what blocks are used with IPvFoo.
This HE tunnel was my only choice to try to prepare for the IPv6 transition. I use it to provide IPv6 service to all the devices on my home network.
Anyone else trying will have to look into what they're resolving as, and update the blocks as appropriate. I did notice that thingiverse. The dnsmasq technique can fix those too. I don't recommend blocking IPv6 ranges because it is very static and can easily be broke, if Netflix traffic goes over a range not blocked. It's why the DNS based approach is better.
It is slightly more dynamic. I included the IPv6 range blocking approach as a fallback in the event you can't control your DNS setup, but whatever works I guess! So shall I use instead? I still have filter-aaaa-on-v4 working fine and only blocking Netflix. I had to make some minor config adjustments after updating BIND today since filter-aaaa moved to a plugin instead.
This was the change to remove filter-aaaa-on-v4 from the global options block and instead place it within the appropriate view:. Kline- nope, not missing anything, just what I came up with, alternatively I just finished getting it all sorted back and wasn't sure if I overlooked something in the process! It is getting harder and harder to keep netflix running. Let's just continue the disable IPv6 myth to fix the problem Yes the original point of this was to allow an IPv6 tunnel to work with Netflix, disabling the tunnel would work of course but kind of negates having one to begin with.
Chances are you want to use it right?! Sorry if my initial response seemed a bit snarky. It is just the disable IPv6 myth doesn't need any more fuel to the already massive fire it has. To be honest you are right, we should be encouraging IPv6 usage. Unfortunately, this scenario required some form of "hack" no matter what. As it's either that, or disable your IPv6 tunnel entirely which isn't really a solution Netflix basically says that's their recommended solution though.
This however isn't really useful when you likely have an IPv6 tunnel because you want DNS based mitigation was seen as the easiest way to allow an IPv6 tunnel to still be active with Netflix and also being reasonably simple to implement. Granted not everyone likes to SSH into their router etc, but these days with packages like dnsmasq being quite common in routers, chances are you can probably configure it on a lot of home type routers as per the original examples, possibly without custom firmware like OpenWrt, so the barrier to entry is about as low as it can be.
Ultimately, yes this will "disable" IPv6 for any Netflix domains, but better than taking out the whole stack entirely I guess. Equally it should be workable across most devices at the network level, rather than having to reconfigure or mess with individual clients. Granted there are exceptions to this i. Chromecast and other Google devices as discovered, so I totally acknowledge it isn't perfect. Technically 6in4 tunnels are also temporary solutions too.
ISPs, providers and even vendors are still lagging on IPv6, so that doesn't help the problem overall. If you had native IPv6, all of this goes away and you wouldn't need an 6in4 tunnel and none of us would be talking on this gist. Sounds like you might have a bit of different case or setup, which if you have got a solution, great! At the end of day I wrote this partly in anger at Netflix but also for other IPv6 enthusiasts, who wouldn't take "Just disable IPv6 or stop using an IPv6 tunnel" as a valid answer, because it shouldn't be!
IPv6 is the future of the internet, embrace it, it's coming! I will note that this appears to only be for their most popular content, this new system. It was within that I could stop using a workaround and use the tunnelbroker. I'm unsure to which geo region I count towards. Reading the comments to this date nobody reported similar. The problem I think are the geo-ip databases. So the information is out there to properly geo-locate HE's tunnelbroker subnets. Nobody is going to the effort to actually do it though.
Do we have any idea how Netflix is getting their geo-ip data so that we can urge them to go to the effort to get it right? Depending on how regularly or if new pops are added, there might be a couple that get through, until Netflix update their blocklist.
It's been a long time but if I remember correctly the original problem was using a HE tunnel meant you got served different geo content in contradiction to your account settings, i. US when in UK. Then Netflix went up a gear and straight blocked HE tunnels entirely which as far as I know is still the case.
I assume Netflix may have also adjusted how it determines what content to show, given they could just look at the Country of Residence on your Netflix account and know there's a difference, but geo IP data can be very hit and miss as you've pointed out from the varying databases entries. I've been planning on giving it a try again soon though. Anyway, do not trust that the geo-ip in the whois for your IP-net is the one that is propagated. But yeah, it all depends on how Netflix looks up the geo-ip information, themselves somehow or through a service.
Unless as jamesmacwhite mentioned, all HE IPv6-space is blocked. Edit: Only ip-lookup. The rest told me I was "correctly" from Sweden. Netflix's own help article even directly references it. On the ipv4 isp route it's all country content. For their own content, other studious country licensing doesn't apply, a full block isn't necessary. Skip to content. Sign in Sign up. Instantly share code, notes, and snippets.
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