Vulnerability · Published Nov 1, 2020 · Assigned by mitre
CVE-2020-28041
Medium 6.5
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities).
Official description
The SIP ALG implementation on NETGEAR Nighthawk R7000 1.0.9.64_10.2.64 devices allows remote attackers to communicate with arbitrary TCP and UDP services on a victim's intranet machine, if the victim visits an attacker-controlled web site with a modern browser, aka NAT Slipstreaming. This occurs because the ALG takes action based on an IP packet with an initial REGISTER substring in the TCP data, and the correct intranet IP address in the subsequent Via header, without properly considering that connection progress and fragmentation affect the meaning of the packet data.
Affected products (as reported)
References
- https://news.ycombinator.com/item?id=24956616 x_refsource_MISC
- https://samy.pl/slipstream/ x_refsource_MISC
- https://github.com/samyk/slipstream x_refsource_MISC
- https://news.ycombinator.com/item?id=24958281 x_refsource_MISC
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0024 x_refsource_CONFIRM