CVE-2021-34433 (GCVE-0-2021-34433)

Vulnerability from cvelistv5 – Published: 2021-08-20 17:10 – Updated: 2024-08-04 00:12
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
  • CWE-322 - Key Exchange without Entity Authentication
Assigner
References
Impacted products
Vendor Product Version
The Eclipse Foundation Eclipse Californium Affected: 2.0.0 , < unspecified (custom)
Affected: unspecified , ≤ 2.6.4 (custom)
Affected: 3.0.0-M1 , < unspecified (custom)
Affected: unspecified , ≤ 3.0.0-M3 (custom)
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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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