CVE-2021-40531 Security feature bypass in n/a
Sketch allows bypassing macOS file quarantine via library feeds, enabling remote code execution when files are automatically opened.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40531?
CVE-2021-40531 is a critical vulnerability in n/a, published on 6 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Sketch before 75 allows library feeds to be used to bypass file quarantine. Files are automatically downloaded and opened, without the com.apple.quarantine extended attribute. This results in remote code execution, as demonstrated by CommandString in a terminal profile to Terminal.app.
Weakness: CWE-434
Which versions are affected by CVE-2021-40531?
It affects 1 product.
Products include Sketch Sketch.
How do I fix CVE-2021-40531?
No fix has been published for CVE-2021-40531 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-40531 being exploited?
There is no known exploitation of CVE-2021-40531 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jf84-45wf-mjgm.