Just a little over a dozen new safety vulnerabilities have been found in residential and enterprise routers manufactured by DrayTek that might be exploited to take over prone units.
“These vulnerabilities could enable attackers to take control of a router by injecting malicious code, allowing them to persist on the device and use it as a gateway into enterprise networks,” Forescout Vedere Labs stated in a technical report shared with The Hacker Information.
Of the 14 safety flaws, two are rated important, 9 are rated excessive, and three are rated medium in severity. Probably the most important of the shortcomings is a flaw that has been awarded the utmost CVSS rating of 10.0.
It considerations a buffer overflow bug within the “GetCGI()” operate within the Internet consumer interface that might result in a denial-of-service (DoS) or distant code execution (RCE) when processing the question string parameters.
One other important vulnerability pertains to a case of working system (OS) command injection within the “recvCmd” binary used for communications between the host and visitor OS.
The remaining 12 flaws are listed beneath –
- Use of the identical admin credentials throughout all the system, leading to full system compromise (CVSS rating: 7.5)
- A mirrored cross-site scripting (XSS) vulnerability within the Internet UI (CVSS rating: 7.5)
- A saved XSS vulnerability within the Internet UI when configuring a customized greeting message after logging in (CVSS rating: 4.9)
- A saved XSS vulnerability within the Internet UI when configuring a customized router title to be exhibited to customers (CVSS rating: 4.9)
- A mirrored XSS vulnerability within the Internet UI’s login web page (CVSS rating: 4.9)
- Buffer overflow vulnerabilities within the Internet UI’s CGI pages “/cgi-bin/v2x00.cgi” and “/cgi-bin/cgiwcg.cgi” resulting in DoS or RCE (CVSS rating: 7.2)
- Buffer overflow vulnerabilities within the Internet UI’s CGI pages resulting in DoS or RCE (CVSS rating: 7.2)
- A stack buffer overflow vulnerability within the Internet UI’s “/cgi-bin/ipfedr.cgi” web page resulting in DoS or RCE (CVSS rating: 7.2)
- A number of buffer overflow vulnerabilities within the Internet UI resulting in DoS or RCE (CVSS rating: 7.2)
- A heap-based buffer overflow vulnerability within the Internet UI’s ft_payloads_dns() operate resulting in DoS (CVSS rating: 7.2)
- An out-of-bounds write vulnerability within the Internet UI resulting in DoS or RCE (CVSS rating: 7.2)
- An data disclosure vulnerability within the net server backend for the Internet UI that might permit an risk actor to carry out an adversary-in-the-middle (AitM) assault (CVSS rating: 7.6)
Forescout’s evaluation discovered that over 704,000 DrayTek routers have their Internet UI uncovered to the web, making it an attack-rich floor for malicious actors. A majority of the uncovered cases are positioned within the U.S., adopted by Vietnam, the Netherlands, Taiwan, and Australia.
Following accountable disclosure, patches for all of the recognized flaws have been launched by DrayTek, with the max-rated vulnerability additionally addressed in 11 end-of-life (EoL) fashions.
“Complete protection against the new vulnerabilities requires patching devices running the affected software,” Forescout stated. “If remote access is enabled on your router, disable it if not needed. Use an access control list (ACL) and two-factor authentication (2FA) if possible.”
The event comes as cybersecurity businesses from Australia, Canada, Germany, Japan, the Netherlands, New Zealand, South Korea, the U.Okay., and the U.S. issued joint steerage for important infrastructure organizations to assist preserve a secure, safe operational know-how (OT) setting.
The doc, titled “Principles of operational technology cybersecurity,” outlines six foundational guidelines –
- Security is paramount
- Data of the enterprise is essential
- OT knowledge is extraordinarily priceless and must be protected
- Phase and segregate OT from all different networks
- The availability chain have to be safe
- Individuals are important for OT cyber safety
“Quickly filtering decisions to identify those that impact the security of OT will enhance the making of robust, informed, and comprehensive decisions that promote safety, security and business continuity when designing, implementing, and managing OT environments,” the businesses stated.
