The bug will likely affect routers the most, but some IoT devices may also be affected. It is unclear how many networking devices use RTL819x chips but the RTL819xD version of the System on a Chip is in products from more than 60 vendors, including ASUSTek, Belkin, Buffalo, D-Link, Edimax, TRENDnet, Zyxel, Tenda, Hikvision, Rockspace, Nexxt, Keo and others. The bug was detailed at the DEFCON conference by cybersecurity company Faraday Security. Realtek issued a bug fix in March 2022, so devices made afterwards should be safe. Routers that do not expose Remote Management can be hacked. Routers with no open ports can be hacked. Either there is updated firmware or it will be vulnerable forever. The flaw is identified as CVE-2022-27255. There is no defense on a buggy device and no easy way to tell if a device is vulnerable.
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Bad guys can remotely execute code without authentication, or just crash a vulnerable device. The bug is the Realtek SDK, specifically the SIP ALG function that rewrites SDP data, which has a stack-based buffer overflow. This is a doozy affecting many devices including routers and access points. All the bugs are now displayed belowĢ017 bugs 2016 bugs 2015 bugs 2014 bugs 2013 bugs 2012 bugs 2011 bugs 2010 bugs 20Įxploit out for critical Realtek flaw affecting many networking devicesīy Ionut Ilascu of Bleeping Computer August 16, 2022 To see all the bugs on one B_I_G web page (makes it easy to find all the issues for any one manufacturer) click this button =>ĭONE. Older bugs, from 2017 through 2012, are available at the bottom of this page. A lawsuit alleged that D-Link "failed to take reasonable steps to protect their routers and IP cameras from widely known and reasonably foreseeable risks of unauthorized access." D-Link was also accused of misleading the public about the security of their devices. THE US GOVERNMENT: In January 2017, the FTC accused D-Link of leaving its routers and webcam devices vulnerable to hackers. Other huge flaws involved UPnP being exposed to the Internet and file sharing on a USB port. Then, of course, there is WPS, the electronic equivalent of a "hack me" sign on your back. Another flaw not to be missed is the Misfortune Cookie from December 2014. A router backdoor was exposed, then instead of being removed, was just better hidden.
The port 32764 issue from January 2014 and April 2014 for example.
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Another reason is cost: router software is developed as cheaply as possible.īIG BUGS: A number of flaws stand out. One reason for this is your ISP, which may have configured the router/gateway in an insecure way, either on purpose, to allow spying, or out of laziness or incompetence. You may be thinking that all software is buggy, but router software is probably worse. Starting April 2018, I also track routers in the news which details the exploitation of router flaws. This page documents the existence of bugs in routers. On the whole, the software in these routers is buggy as heck. If you care about the security of your router, and you should, it is best to avoid consumer grade routers.
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