ETIC Telecom RAS versions 4.7.0 and prior the web management portal authentication disabled by default. This could allow an attacker with adjacent network access to alter the configuration of the device or cause a denial-of-service condition.

All versions of ETIC Telecom Remote Access Server (RAS) 4.5.0 and prior is vulnerable to malicious file upload. An attacker could take advantage of this to store malicious files on the server, which could override sensitive and useful existing files on the filesystem, fill the hard disk to full capacity, or compromise the affected device or computers with administrator level privileges connected to the affected device.

All versions of ETIC Telecom Remote Access Server (RAS) 4.5.0 and prior’s application programmable interface (API) is vulnerable to directory traversal through several different methods. This could allow an attacker to read sensitive files from the server, including SSH private keys, passwords, scripts, python objects, database files, and more.

All versions of ETIC Telecom Remote Access Server (RAS) 4.5.0 and prior’s web portal is vulnerable to accepting malicious firmware packages that could provide a backdoor to an attacker and provide privilege escalation to the device.

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.

Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.