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CVE-2021-34433

Published: Aug 20, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-322
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 74.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-322CWE-347

Affected Products

Eclipse CaliforniumThe Eclipse Foundation
Mixed
OSS Libraries / generic-library
californiumeclipseDevTools & CI
the eclipse foundationoss-projectOSS Librariesaka eclipse jetty, eclipse mosquitto, eclipse openj9
eclipseoss-projectBEDevTools & CIaka eclipse-foundation

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281
bugs.eclipse.org

Timeline

Published
Aug 20, 2021
Last Updated
Nov 21, 2024

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