Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-34433

Quick assessment

Affected
The Eclipse Foundation Eclipse Californium
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse Californium是Eclipse基金会的一款基于Java的为物联网提供Coap后端支持的代码库。 Eclipse Californium 存在数据伪造问题漏洞，该漏洞源于客户端的该产品未验证来自服务端的基于 DTLS 握手信息的证书。以下产品及版本受到影响：Eclipse Californium 2.0.0 至 2.6.4 版本，Eclipse Californium 3.0.0-M1 至 3.0.0-M3 版本。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-34433

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未进行实体认证的密钥交换
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Californium 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Californium是Eclipse基金会的一款基于Java的为物联网提供Coap后端支持的代码库。 Eclipse Californium 存在数据伪造问题漏洞，该漏洞源于客户端的该产品未验证来自服务端的基于 DTLS 握手信息的证书。以下产品及版本受到影响：Eclipse Californium 2.0.0 至 2.6.4 版本，Eclipse Californium 3.0.0-M1 至 3.0.0-M3 版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Eclipse Foundation Eclipse Californium 2.0.0 ~ unspecified -

II. Public POCs for CVE-2021-34433

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-34433

请登录查看更多情报信息。

Other References for CVE-2021-34433 (1)

IV. Related Vulnerabilities

Same product: Eclipse Californium
Same vendor: The Eclipse Foundation
Same weakness: CWE-322

V. Comments for CVE-2021-34433

No comments yet

Leave a comment