CVE-2021-3336
WolfSSL Dot TLS 1.3 Certificate Verify Man-in-the-Middle Attack Vulnerability
Description
DoTls13CertificateVerify in tls13.c in wolfSSL before 4.7.0 does not cease processing for certain anomalous peer behavior (sending an ED22519, ED448, ECC, or RSA signature without the corresponding certificate). The client side is affected because man-in-the-middle attackers can impersonate TLS 1.3 servers.
INFO
Published Date :
Jan. 29, 2021, 5:15 a.m.
Last Modified :
March 4, 2021, 9:20 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2021-3336 has a 10 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3336.
| URL | Resource |
|---|---|
| https://github.com/wolfSSL/wolfssl/pull/3676 | Patch Third Party Advisory |
| https://www.wolfssl.com/docs/security-vulnerabilities | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
ebox-server
CMake C++ Shell C Makefile Batchfile Perl FreeMarker Objective-C M4
None
CMake C++ Shell C Makefile Batchfile Perl FreeMarker Objective-C M4
None
CMake C++ Shell C Makefile Batchfile Perl FreeMarker Objective-C M4
None
C Assembly SWIG
None
C Assembly SWIG
None
CMake C++ Shell C Makefile Batchfile Perl FreeMarker Objective-C M4
None
CMake C++ Shell C Makefile Batchfile Perl FreeMarker Objective-C M4
Integration of selected post-quantum schemes into the embedded TLS library wolfSSL as part of our paper "Mixed Certificate Chains for the Transition to Post-Quantum Authentication in TLS 1.3"
pqc security cryptography tls paper-resource
CMake C++ Shell C Makefile Batchfile Perl FreeMarker Objective-C M4
The wolfSSL library for Arduino.
tls ssl wolfssl security encryption https
C Assembly SWIG C++
BoltWrt是一款嵌入式路由器系统,它在OpenWrt的基础上,针对中国的用户需求和网络环境,添加了很多高级功能和特性.它的目标是打造一个高效,稳定,安全,易用的路由器系统.
openwrt
Makefile Awk Shell C Assembly C++ M4 CMake Perl Lex
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3336 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3336 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Mar. 04, 2021
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.wolfssl.com/docs/security-vulnerabilities No Types Assigned https://www.wolfssl.com/docs/security-vulnerabilities Vendor Advisory Changed CPE Configuration OR *cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* versions up to (including) 4.6.0 OR *cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* versions up to (excluding) 4.7.0 -
CVE Modified by [email protected]
Feb. 23, 2021
Action Type Old Value New Value Changed Description DoTls13CertificateVerify in tls13.c in wolfSSL through 4.6.0 does not cease processing for certain anomalous peer behavior (sending an ED22519, ED448, ECC, or RSA signature without the corresponding certificate). DoTls13CertificateVerify in tls13.c in wolfSSL before 4.7.0 does not cease processing for certain anomalous peer behavior (sending an ED22519, ED448, ECC, or RSA signature without the corresponding certificate). The client side is affected because man-in-the-middle attackers can impersonate TLS 1.3 servers. -
CVE Modified by [email protected]
Feb. 22, 2021
Action Type Old Value New Value Added Reference https://www.wolfssl.com/docs/security-vulnerabilities [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 02, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/wolfSSL/wolfssl/pull/3676 No Types Assigned https://github.com/wolfSSL/wolfssl/pull/3676 Patch, Third Party Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* versions up to (including) 4.6.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3336 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3336
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} -0.00%
score
0.43128
percentile