Vulnerability · Published Aug 20, 2021 · Assigned by eclipse
CVE-2021-34433
High 7.5
In plain English
A high-severity security flaw in Eclipse Californium from The Eclipse Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)0.3%top 72.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Eclipse Foundation | Eclipse Californium | 2.0.0 – before unspecifiedunspecified – through 2.6.43.0.0-M1 – before unspecifiedunspecified – through 3.0.0-M3 |
Weakness: CWE-322
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281 x_refsource_CONFIRM