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Luigi Auriemma
Application: eSignal and eSignal Pro
http://www.esignal.com/esignal/default.aspx
Versions: <= 10.6.2425.1208
Platforms: Windows
Bugs: A] code execution
B] heap overflow
Exploitation: file
Date: 06 Sep 2011
Author: Luigi Auriemma
e-mail: aluigi@autistici.org
web: aluigi.org
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1) Introduction
2) Bugs
3) The Code
4) Fix
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1) Introduction
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From vendor's website:
"eSignal is an all-in-one trading platform that includes the data,
tools and functionality serious individual traders and professionals
need to keep them at the top of their game."
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2) Bugs
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A] code execution
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The software is unable to handle the "<StyleTemplate>" files (even
those original included in the program) like those with the registered
extensions QUO, SUM and POR:
eax=00000001 ebx=00000000 ecx=61616161 edx=02830000 esi=0012f020 edi=03ed97f0
eip=61616161 esp=0012efb8 ebp=0012f088 iopl=0 nv up ei pl nz ac po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010212
61616161 ?? ???
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B] heap overflow
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Heap overflow during the handling of the Font->FaceName field of the
various files that use it like ETS, ETQ, ESK and so on:
eax=04255aa8 ebx=0012f004 ecx=04255ab4 edx=61616160 esi=0012f004 edi=61616161
eip=781f3a31 esp=0012ef94 ebp=0012efa4 iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206
MFC80+0x23a31:
781f3a31 8b07 mov eax,dword ptr [edi] ds:0023:61616161=????????
781f3a33 8bcf mov ecx,edi
781f3a35 ff500c call dword ptr [eax+0Ch]
or
eax=04012d40 ebx=00000000 ecx=04012d40 edx=61616161 esi=040129b0 edi=0012cfd4
eip=7822c445 esp=0012ce58 ebp=0012ce6c iopl=0 nv up ei pl nz na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010202
MFC80+0x5c445:
7822c445 ff9270010000 call dword ptr [edx+170h] ds:0023:616162d1=????????
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3) The Code
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http://aluigi.org/poc/esignal_1.zip
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/17837.zip
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4) Fix
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No fix.
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