CVE-2020-28041

Public Exploit

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.06% Top 25%
Third-Party Advisory github.com Third-Party Advisory ycombinator.com Third-Party Advisory ycombinator.com Third-Party Advisory sonicwall.com Third-Party Advisory samy.pl
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://news.ycombinator.com/item?id=24956616 third party advisory exploit
https://samy.pl/slipstream/ third party advisory exploit
https://github.com/samyk/slipstream third party advisory
https://news.ycombinator.com/item?id=24958281 third party advisory exploit
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0024 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-28041?
CVE-2020-28041 has been scored as a medium severity vulnerability.
How to fix CVE-2020-28041?
To fix CVE-2020-28041, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-28041 being actively exploited in the wild?
It is possible that CVE-2020-28041 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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