CVE-2020-28041 Server-side request forgery in n/a
Remote attackers can bypass NAT to access internal services via SIP ALG flaws when victims visit malicious sites, requiring firmware updates.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-28041?
CVE-2020-28041 is a medium-severity server-side request forgery vulnerability in n/a, published on 1 Nov 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-276
Which versions are affected by CVE-2020-28041?
It affects 1 product.
Products include Netgear Nighthawk R7000 Firmware.
How do I fix CVE-2020-28041?
No fix has been published for CVE-2020-28041 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2020-28041 being exploited?
There is no known exploitation of CVE-2020-28041 in the wild and no public exploit code.
Sources
Also known as GHSA-9375-g7g5-p5fh.