// For flags

CVE-2021-34599

Improper Certificate Validation in CODESYS Git

Severity Score

7.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Affected versions of CODESYS Git in Versions prior to V1.1.0.0 lack certificate validation in HTTPS handshakes. CODESYS Git does not implement certificate validation by default, so it does not verify that the server provides a valid and trusted HTTPS certificate. Since the certificate of the server to which the connection is made is not properly verified, the server connection is vulnerable to a man-in-the-middle attack.

Las versiones afectadas de CODESYS Git en Versiones anteriores a V1.1.0.0, carecen de la comprobación de certificados en los protocolos de enlace HTTPS. CODESYS Git no implementa la comprobación de certificados por defecto, por lo que no comprueba que el servidor proporcione un certificado HTTPS válido y confiable. Dado que el certificado del servidor con el que es realizada la conexión no es verificado apropiadamente, la conexión del servidor es vulnerable a un ataque de tipo man-in-the-middle

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-06-10 CVE Reserved
  • 2021-12-01 CVE Published
  • 2024-08-16 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
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
Codesys
Search vendor "Codesys"
 Git
Search vendor "Codesys" for product "Git"
 < 1.1.0.0
Search vendor "Codesys" for product "Git" and version " < 1.1.0.0"
-
Affected
in Codesys
Search vendor "Codesys"
 Development System
Search vendor "Codesys" for product "Development System"
 < 3.5.17.0
Search vendor "Codesys" for product "Development System" and version " < 3.5.17.0"
-
Safe