CVE Vulnerability

CVE-2021-34433

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281 Issue Tracking Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:eclipse:californium:3.0.0:m2:*:*:*:*:*:*
cpe:2.3:a:eclipse:californium:3.0.0:m3:*:*:*:*:*:*
cpe:2.3:a:eclipse:californium:3.0.0:m1:*:*:*:*:*:*
cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*
Information

Published : 2021-08-20 05:15

Updated : 2021-08-26 02:02

NVD link : CVE-2021-34433

Mitre link : CVE-2021-34433

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature