Abyss Web Server X1 2.11.1 Multiple Local Privilege Escalation

vendor:

Abyss Web Server X1

by:

Tulpa

7,2

CVSS

HIGH

Local Privilege Escalation

264

CWE

Product Name: Abyss Web Server X1

Affected Version From: 2.11.1

Affected Version To: 2.11.1

Patch Exists: NO

Related CWE: N/A

CPE: a:aprelium:abyss_web_server_x1

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows 7 x86

2016

Abyss Web Server X1 2.11.1 Multiple Local Privilege Escalation

Abyss Web Server installs a service called 'AbyssWebServer' with an unquoted service path running with SYSTEM privileges. This could potentially allow an authorized but non-privileged local user to execute arbitrary code with elevated privileges on the system. Abyss Web Server also suffers from weak file and folder permissions which could allow an unauthorized user to swop out executable files with their own payload.

Mitigation:

Ensure that all services are running with the least privileges necessary and that all service paths are quoted.

Source

Exploit-DB raw data:

# Exploit Title: Abyss Web Server X1 2.11.1 Multiple Local Privilege Escalation
# Date: 05/10/2016
# Exploit Author: Tulpa
# Contact: tulpa@tulpa-security.com
# Author website: www.tulpa-security.com
# Author twitter: @tulpa_security
# Vendor Homepage: http://aprelium.com/
# Application Download: http://aprelium.com/abyssws/download.php
# Version: Software Version 2.11.1
# Tested on: Windows 7 x86
# Shout-out to carbonated and ozzie_offsec

1. Description:

Abyss Web Server installs a service called 'AbyssWebServer' with an unquoted service path running with SYSTEM privileges.
This could potentially allow an authorized but non-privileged local
user to execute arbitrary code with elevated privileges on the system. Abyss Web Server also suffers from weak file and folder permissions which could allow

an unauthorized user to swop out executable files with their own payload.

2. Proof

C:\Program Files>sc qc AbyssWebServer
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: AbyssWebServer
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Abyss Web Server\abyssws.exe --service
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Abyss Web Server
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem


3. Exploit:

A successful attempt would require the local user to be able to insert their
code in the system root path undetected by the OS or other security applications
where it could potentially be executed during application startup or reboot.
If successful, the local user's code would execute with the elevated privileges
of the application.