// For flags

CVE-2021-42855

Local privilege escalation due to misconfigured write permission on .debug_command.config file

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent (DSA) uses the ".debug_command.config" file to store a json string that contains a list of IDs and pre-configured commands. The config file is subsequently used by the "/api/appInternals/1.0/agent/configuration" API to map the corresponding ID to a command to be executed.

Se ha detectado que el agente de muestreo dinámico (DSA) de SteelCentral AppInternals usa el archivo ".debug_command.config" para almacenar una cadena json que contiene una lista de ID y comandos preconfigurados. El archivo de configuración es usado posteriormente por la API "/api/appInternals/1.0/agent/configuration" para asignar el ID correspondiente a un comando a ejecutar

*Credits: Darrel Huang, Bjorn Lim, Leng Kang Hao from Government Technology Agency of Singapore
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-10-25 CVE Reserved
  • 2022-03-09 CVE Published
  • 2023-09-30 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-284: Improper Access Control
  • CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Riverbed
Search vendor "Riverbed"
Steelcentral Appinternals Dynamic Sampling Agent
Search vendor "Riverbed" for product "Steelcentral Appinternals Dynamic Sampling Agent"
>= 11.0.0 < 11.8.8
Search vendor "Riverbed" for product "Steelcentral Appinternals Dynamic Sampling Agent" and version " >= 11.0.0 < 11.8.8"
-
Affected
Riverbed
Search vendor "Riverbed"
Steelcentral Appinternals Dynamic Sampling Agent
Search vendor "Riverbed" for product "Steelcentral Appinternals Dynamic Sampling Agent"
>= 12.0.0 < 12.13.0
Search vendor "Riverbed" for product "Steelcentral Appinternals Dynamic Sampling Agent" and version " >= 12.0.0 < 12.13.0"
-
Affected
Riverbed
Search vendor "Riverbed"
Steelcentral Appinternals Dynamic Sampling Agent
Search vendor "Riverbed" for product "Steelcentral Appinternals Dynamic Sampling Agent"
10.0.0
Search vendor "Riverbed" for product "Steelcentral Appinternals Dynamic Sampling Agent" and version "10.0.0"
-
Affected