CVE-2021-1799 Server-side request forgery in iOS and iPadOS
A malicious website can access restricted ports on arbitrary servers due to insufficient port validation in Apple operating systems.
- 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
- Available
What is CVE-2021-1799?
CVE-2021-1799 is a medium-severity server-side request forgery vulnerability in Apple Ipad Os, published on 2 Apr 2021. 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
A port redirection issue was addressed with additional port validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. A malicious website may be able to access restricted ports on arbitrary servers.
Which versions are affected by CVE-2021-1799?
It affects 8 products.
Products include Apple Ipad Os, Apple Iphone Os, Apple Macos, Apple Safari, Apple Tvos, Apple Watchos and 2 more.
How do I fix CVE-2021-1799?
Apply the vendor's patch.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2021-1799 being exploited?
There is no known exploitation of CVE-2021-1799 in the wild and no public exploit code.
Other vulnerabilities in Apple Ipad Os
Sources
Also known as DEBIAN-CVE-2021-1799, GHSA-94v4-v74g-2hx6, UBUNTU-CVE-2021-1799.