// For flags

CVE-2020-36160

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Veritas System Recovery before 21.2. On start-up, it loads the OpenSSL library from \usr\local\ssl. This library attempts to load the from \usr\local\ssl\openssl.cnf configuration file, which does not exist. By default, on Windows systems, users can create directories under C:\. A low privileged user can create a C:\usr\local\ssl\openssl.cnf configuration file to load a malicious OpenSSL engine, resulting in arbitrary code execution as SYSTEM when the service starts. This gives the attacker administrator access on the system, allowing the attacker (by default) to access all data and installed applications, etc. If the system is also an Active Directory domain controller, then this can affect the entire domain.

Se detectó un problema en Veritas System Recovery versiones anteriores a 21.2. Al iniciarse, carga la biblioteca OpenSSL desde \usr\local\ssl. Esta biblioteca intenta cargar el archivo de configuración desde \usr\local\ssl\openssl.cnf, que no existe. Por defecto, en los sistemas Windows, los usuarios pueden crear directorios en C:\. Un usuario poco privilegiado puede crear un archivo de configuración C:\usr\local\ssl\openssl.cnf para cargar un motor OpenSSL malicioso, resultando en una ejecución de código arbitraria como SYSTEM cuando se inicia el servicio. Esto le otorga al atacante acceso de administrador al sistema, permitiendo al atacante (por defecto) acceder a todos los datos y aplicaciones instaladas, etc. Si el sistema también es un controlador de dominio de Active Directory, entonces esto puede afectar a todo el dominio

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-06 CVE Reserved
  • 2021-01-06 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://www.veritas.com/content/support/en_US/security/VTS20-017 2021-01-11
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Veritas
Search vendor "Veritas"
 System Recovery
Search vendor "Veritas" for product "System Recovery"
 < 21.2
Search vendor "Veritas" for product "System Recovery" and version " < 21.2"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows
Search vendor "Microsoft" for product "Windows"
--
Safe