// For flags

CVE-2020-24613

 

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers.

wolfSSL versiones anteriores a 4.5.0, maneja inapropiadamente los datos del servidor TLS versión 1.3 en el estado WAIT_CERT_CR, dentro de la función SanityCheckTls13MsgReceived() en el archivo tls13.c. Está es una implementación incorrecta de la máquina de estado del cliente TLS versión 1.3. Esto permite a atacantes en una posición de red privilegiada suplantar completamente cualquiera de los servidores TLS versión 1.3 y leer o modificar información potencialmente confidencial entre clientes que usan la biblioteca de wolfSSL y estos servidores TLS.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-08-24 CVE Reserved
  • 2020-08-24 CVE Published
  • 2023-12-28 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-295: Improper Certificate Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Wolfssl
Search vendor "Wolfssl"
Wolfssl
Search vendor "Wolfssl" for product "Wolfssl"
< 4.5.0
Search vendor "Wolfssl" for product "Wolfssl" and version " < 4.5.0"
-
Affected