High severity · published Jul 8, 2021
CVE-2021-34430
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
7.5
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TI
Tinydtls · Eclipse
through 0.8.2; 0.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34430
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34430
Exploit
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568803
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