CVE-2021-34433
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
En Eclipse Californium versiones 2.0.0 a 2.6.4 y 3.0.0-M1 a 3.0.0-M3, los handshakes DTLS basados en certificados (x509 y RPK) presentan éxito accidentalmente sin verificar la firma del lado del servidor en el lado del cliente, si esa firma no está incluida en el ServerKeyExchange del servidor.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-06-09 CVE Reserved
- 2021-08-20 CVE Published
- 2024-05-05 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-322: Key Exchange without Entity Authentication
- CWE-347: Improper Verification of Cryptographic Signature
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281 | 2021-08-26 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Eclipse Search vendor "Eclipse" | Californium Search vendor "Eclipse" for product "Californium" | >= 2.0.0 < 2.6.5 Search vendor "Eclipse" for product "Californium" and version " >= 2.0.0 < 2.6.5" | - |
Affected
| ||||||
| Eclipse Search vendor "Eclipse" | Californium Search vendor "Eclipse" for product "Californium" | 3.0.0 Search vendor "Eclipse" for product "Californium" and version "3.0.0" | m1 |
Affected
| ||||||
| Eclipse Search vendor "Eclipse" | Californium Search vendor "Eclipse" for product "Californium" | 3.0.0 Search vendor "Eclipse" for product "Californium" and version "3.0.0" | m2 |
Affected
| ||||||
| Eclipse Search vendor "Eclipse" | Californium Search vendor "Eclipse" for product "Californium" | 3.0.0 Search vendor "Eclipse" for product "Californium" and version "3.0.0" | m3 |
Affected
| ||||||