// For flags

CVE-2021-27768

An SSL certificate host verification vulnerability affects HCL Verse for Android

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Using the ability to perform a Man-in-the-Middle (MITM) attack, which indicates a lack of hostname verification, sensitive account information was able to be intercepted. In this specific scenario, the application's network traffic was intercepted using a proxy server set up in 'transparent' mode while a certificate with an invalid hostname was active. The Android application was found to have hostname verification issues during the server setup and login flows; however, the application did not process requests post-login.

Usando la capacidad de llevar a cabo un ataque de tipo Man-in-the-Middle (MITM), que indica una falta de verificación del nombre de host, pudo interceptarse información confidencial de la cuenta. En este caso concreto, fué interceptado el tráfico de red de la aplicación usando un servidor proxy configurado en modo "transparent" mientras estaba activo un certificado con un nombre de host no válido. Se ha detectado que la aplicación de Android tenía problemas de verificación del nombre de host durante la configuración del servidor y los flujos de inicio de sesión; sin embargo, la aplicación no procesaba las peticiones después del inicio de sesión

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-02-26 CVE Reserved
  • 2022-05-12 CVE Published
  • 2023-12-03 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-295: Improper Certificate Validation
  • CWE-300: Channel Accessible by Non-Endpoint
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Hcltech
Search vendor "Hcltech"
Verse
Search vendor "Hcltech" for product "Verse"
< 12.0.9
Search vendor "Hcltech" for product "Verse" and version " < 12.0.9"
android
Affected