CVE-2020-15593

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

SteelCentral Aternity Agent 11.0.0.120 on Windows mishandles IPC. It uses an executable running as a high privileged Windows service to perform administrative tasks and collect data from other processes. It distributes functionality among different processes and uses IPC (Inter-Process Communication) primitives to enable the processes to cooperate. Any user in the system is allowed to access the interprocess communication channel AternityAgentAssistantIpc, retrieve a serialized object and call object methods remotely. Among others, the methods allow any user to: (1) Create and/or overwrite arbitrary XML files across the system; (2) Create arbitrary directories across the system; and (3) Load arbitrary plugins (i.e., C# assemblies) from the "%PROGRAMFILES(X86)/Aternity Information Systems/Assistant/plugins” directory and execute code contained in them.

SteelCentral Aternity Agent versiones 11.0.0.120, en Windows maneja inapropiadamente IPC. Utiliza un ejecutable que se ejecuta como un servicio de Windows muy privilegiado para llevar a cabo tareas administrativas y recopilar datos de otros procesos. Distribuye la funcionalidad entre diferentes procesos y utiliza primitivas IPC (Inter-Process Communication) para permitir a los procesos cooperar. Cualquier usuario en el sistema puede acceder al canal de comunicación entre procesos AternityAgentAssistantIpc, recuperar un objeto serializado y llamar a métodos de objetos remotamente. Entre otros, los métodos permiten a cualquier usuario: (1) Crear y/o sobrescribir archivos XML arbitrarios en todo el sistema; (2) Crear directorios arbitrarios en todo el sistema; y (3) Cargar plugins arbitrarios (es decir, ensamblajes de C #) desde el directorio "%PROGRAMFILES(X86)/Aternity Information Systems/Assistant/plugins” y ejecutar el código contenido en ellos

*Credits: N/A

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

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-07-07 CVE Reserved
2020-07-24 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
https://sec-consult.com/en/blog/advisories/privilege-escalation-vulnerability-in-steelcentral-aternity-agent-cve-2020-15592-cve-2020-15593	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

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 Aternity Agent Search vendor "Riverbed" for product "Steelcentral Aternity Agent"	11.0.0.120 Search vendor "Riverbed" for product "Steelcentral Aternity Agent" and version "11.0.0.120"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe