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NETGEAR Routers and CVE-2016-582384 security vulnerability
I am a bit concerned about this recent article: http://www.zdnet.com/article/two-netgear-routers-are-vulnerable-to-trivial-to-remote-hack/ https://www.kb.cert.org/vuls/id/582384 Details: Overview Net...
NETGEAR is aware of the security issue #582384 affecting R6250, R6400, R6700, R6900, R7000, R7100LG, R7300DST, R7900, R8000, D6220, D6400 routers. Stay updated here: http://kb.netgear.com/000036386/CVE-2016-582384We now have beta firmware containing fixes for some affected models.
We're working hard on fixes for the other affected models and will update the security ticket above soon.
**** UPDATE from NETGEAR - Added by ChristineT on 12/15/16 at 10:30 AM PST ****
To our NETGEAR Community, we sincerely apologize for any complications you may have encountered due to the recently publicized vulnerability, referred to as VU 582384. We initially became aware of this vulnerability last Friday when CERT emailed us, and because we had no record of a prior report, we began our standard process of validation prior to making any public statements.
Once it had been disclosed that the first notification actually occurred in August, we conducted a search and confirmed this was the case. Admittedly, this was an oversight on our part. While no security reporting system is perfect, we aim to do better, and are evaluating how to improve our response process.
NETGEAR has created a channel for security researchers and other members of the public to contact us regarding potential security issues affecting NETGEAR products (security@netgear.com), which is publicly disclosed from the NETGEAR Product Security Advisory page. We receive numerous emails through this channel, the overwhelming majority of which, on review, do not raise product security issues. When we do recognize that there is a security risk to our customers, we work diligently to address them in a timely manner, as we have done in this case since learning about it last Friday.
Security Advisory for VU 582384 knowledgebase article.
NETGEAR Product Security Advisory page.
I tested the exploit (to the best of my ability) and found that it does not seem to work with firmware version V1.0.3.68_1.1.31 . The string causes the router to request the admin login and then fails to the "Unauthorized Access" screen. The command after the semicolon does not appear to be executed. Unfortunately, I could only test from my local network, so I cannot confirm whether this is a "universal fix".
Although this is an older version of the firmware, it may be a work around while NetGear works up a patch. I believe that some of the older versions are archived online.
Regardless, be safe.
Coherent_Lite wrote:I believe that some of the older versions are archived online.
You can find about a dozen firmware versions here:
R8000 | Product | Support | NETGEAR
I have been playing with the proof-of-concept strings a little bit more. First, I note that the exploit-db website has two different versions: one with a "cgi-bin" directory and the other without. I tried both with my R7000 running the older firmware (I never upgraded due to issues with the 1.06(?) firmware). The results are as follows:
Without the "cgi-bin" directory designation, trying both the ls command and the telnet command, the router requests the admin login and then fails to the "Unauthorized access" screen. The commands do not appear to be executed.
With the "cgi-bin" directory included, the router returns a "Resource Not Found" error, but neither command was executed. Perhaps a more experienced user might be able to explain this, but it seems to me like the request is being interpreted by the router and then failed due to the directory not being found. If so, then is it possible that a re-crafted string might work on the older firmware?