Novell Groupwise Messenger 2.1.0 – Arbitrary Memory Corruption

• Exploit Database
• 112 阅读

• 作者： Luigi Auriemma
  日期： 2012-02-16
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/18488/
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  #######################################################################   Luigi Auriemma   Application:Novell GroupWise Messenger http://www.novell.com/products/groupwise/ Versions: <= 2.1.0 Platforms:Windows, Linux, NetWare Bug:write4 Exploitation: remote, versus server Date: 16 Feb 2012 (found 10 May 2011) Author: Luigi Auriemma e-mail: aluigi@autistici.org web:aluigi.org     #######################################################################     1) Introduction 2) Bug 3) The Code 4) Fix     #######################################################################   =============== 1) Introduction ===============     Check vendor&apos;s homepage and version because this is an old advisory.     #######################################################################   ====== 2) Bug ======     nmma.exe is a service running on port 8300.   The protocol is composed by fields that have particular types, for example 10 for strings or 8 for integers and so on like any RPC protocol.   Through the "createsearch" command sent from a valid account and a type 9 value is possible to write a 0x00000000 in an arbitrary memory location:   00496E2A|> 8B5D 0C/MOV EBX,DWORD PTR SS:[EBP+C] 00496E2D|> 8B4D F8 MOV ECX,DWORD PTR SS:[EBP-8] 00496E30|. 8A47 06|MOV AL,BYTE PTR DS:[EDI+6] 00496E33|. 81E1 FFFF0000|AND ECX,0FFFF 00496E39|. 3C 02|CMP AL,2 00496E3B|. 8B5C8B 04|MOV EBX,DWORD PTR DS:[EBX+ECX*4+4] ... 00496F3A|. C703 00000000|MOV DWORD PTR DS:[EBX],0 ; EBX is controlled 00496F40|. 83C3 04|ADD EBX,4 00496F43|. 53 |PUSH EBX 00496F44|. 6A 20|PUSH 20 00496F46|. E8 5541F9FF|CALL nmma.0042B0A0   Seems that this vulnerability can be reached only with a valid account. In my PoC I have used a pre-build admin::adminpass account so remember to change the NM_A_PARM1 field if you want to use another one.     #######################################################################   =========== 3) The Code ===========     http://aluigi.org/poc/nmma_x.zip https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/18488.zip (nmma_x.zip)   nmma_x 3 SERVER     #######################################################################   ====== 4) Fix ======     No fix.     #######################################################################