A critical vulnerability patched recently by Sophos in its Cyberoam firewall appliances allows a remote, unauthenticated attacker to execute arbitrary commands with root privileges.
The flaw, tracked as CVE-2019-17059, affects the CyberoamOS Linux-based operating system and it can be exploited by sending specially crafted requests to the product’s Web Admin or SSL VPN consoles.
The vulnerability was disclosed through TheBestVPN, which recently published a blog post detailing the weakness and how it can be exploited.
“In most network environments, Cyberoam devices are used as firewalls and SSL VPN gateways. This gives a potential attacker a strong foothold in a network. It makes it easier to attack hosts inside the network, and since Cyberoam devices are usually trusted in most environments, this gives a would-be attacker extra edge,” Rob Mardisalu, co-founder and editor of TheBestVPN, said in a blog post.
There are reportedly over 96,000 internet-exposed Cyberoam appliances, including ones housed by enterprises, financial organizations, and educational institutions.
The vulnerability impacts Cyberoam firewalls running CyberoamOS 10.6.6 MR-5 and earlier. A patch has been delivered automatically starting with September 30 to customers who use default settings, and the fix will also be included in the upcoming 10.6.6 MR-6 version of the operating system, Sophos said in an advisory published last week.
Disclosure of this vulnerability comes just weeks after researchers made public the details of several flaws affecting enterprise VPN solutions from Palo Alto Networks, Fortinet and Pulse Secure.