CVE-2021-34430 Weak cryptography in Eclipse TinyDTLS
Remote attackers can decrypt DTLS traffic by computing the master key due to reliance on a weak C library random number generator.
- 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-2021-34430?
CVE-2021-34430 is a high-severity vulnerability in The Eclipse Foundation Eclipse TinyDTLS, published on 8 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Eclipse TinyDTLS through 0.9-rc1 relies on the rand function in the C library, which makes it easier for remote attackers to compute the master key and then decrypt DTLS traffic.
Which versions are affected by CVE-2021-34430?
It affects 1 product.
Products include Eclipse Tinydtls.
How do I fix CVE-2021-34430?
No fix has been published for CVE-2021-34430 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-34430 being exploited?
There is no known exploitation of CVE-2021-34430 in the wild and no public exploit code.
Other vulnerabilities in The Eclipse Foundation Eclipse TinyDTLS
Sources
Also known as GHSA-ffg3-3xwj-f92r.