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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2024-5814— Unverifed Ciphersuite used on a client-side TLS1.3 Downgrade

Quick assessment

Affected
wolfSSL wolfSSL
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.

wolfSSL（CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL存在安全漏洞，该漏洞源于恶意的 TLS1.2 服务器可以强制具有降级功能的 TLS1.3 客户端使用其不同意的密码套件并实现成功连接。

AI Predicted 7.4 Difficulty: Moderate EPSS 0.47% · P38

Possible ATT&CK Techniques 1 AI

T1557.002 · ARP Cache Poisoning
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2024-5814

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Unverifed Ciphersuite used on a client-side TLS1.3 Downgrade
Source: CVE Program / CVE List V5
Vulnerability Description
A malicious TLS1.2 server can force a TLS1.3 client with downgrade capability to use a ciphersuite that it did not agree to and achieve a successful connection. This is because, aside from the extensions, the client was skipping fully parsing the server hello. https://doi.org/10.46586/tches.v2024.i1.457-500
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/AU:Y/V:D/RE:M/U:Green
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
wolfSSL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wolfSSL（CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL存在安全漏洞，该漏洞源于恶意的 TLS1.2 服务器可以强制具有降级功能的 TLS1.3 客户端使用其不同意的密码套件并实现成功连接。
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
wolfSSL wolfSSL 0 ~ 5.7.0 -

II. Public POCs for CVE-2024-5814

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2024-5814

请登录查看更多情报信息。

Other References for CVE-2024-5814 (1)

Same Patch Batch · wolfSSL · 2024-08-27 · 3 CVEs total

CVE-2024-1544 4.1 MEDIUM ECDSA nonce bias caused by truncation
CVE-2024-5991 Buffer overread in domain name matching

IV. Related Vulnerabilities

Same product: wolfSSL
Same vendor: wolfSSL

V. Comments for CVE-2024-5814

No comments yet

Leave a comment