Artweaver 3.1.5 - '.awd' Buffer Overflow

EDB-ID:

27047




Platform:

Windows

Date:

2013-07-23


Core Security - Corelabs Advisory
http://corelabs.coresecurity.com/

Artweaver Buffer Overflow Vulnerability


1. *Advisory Information*

Title: Artweaver Buffer Overflow Vulnerability
Advisory ID: CORE-2013-0701
Advisory URL:
http://www.coresecurity.com/advisories/artweaver-buffer-overflow-vulnerability
Date published: 2013-07-22
Date of last update: 2013-07-22
Vendors contacted: Artweaver
Release mode: Coordinated release


2. *Vulnerability Information*

Class: Buffer overflow [CWE-119]
Impact: Code execution
Remotely Exploitable: Yes
Locally Exploitable: No
CVE Name: CVE-2013-2576


3. *Vulnerability Description*

Artweaver [1], [2] is prone to a security vulnerability when processing
AWD files. This vulnerability could be exploited by a remote attacker to
execute arbitrary code on the target machine by enticing Artweaver users
to open a specially crafted file.


4. *Vulnerable Packages*

   . Artweaver v3.1.5.
   . Older versions are probably affected too, but they were not checked.


5. *Non-Vulnerable Packages*

   . Artweaver v3.1.6.
   . Artweaver v4.0.


6. *Vendor Information, Solutions and Workarounds*

Vendor notifies that Artweaver v3.1.6 and v4.0 are available and fix the
reported vulnerability. Vendor encourages all Artweaver users to update
to the latest version:

   1. http://www.artweaver.de/en/help/68
   2. Artweaver Plus - http://www.artweaver.de/en/help/80
   3. Artweaver Free - http://www.artweaver.de/en/help/81


7. *Credits*

This vulnerability was discovered and researched by Daniel Kazimirow
from Core Exploit Writers Team. The publication of this advisory was
coordinated by Fernando Miranda from Core Advisories Team.


8. *Technical Description / Proof of Concept Code*

Below is shown the result of opening the maliciously crafted file
'CORE-2013-0701-artweaver-poc-28ab190b137f3.AWD'[3], which means the
normal execution flow can be altered in order to execute arbitrary code.

/-----
004F3265    8B45 FC         MOV EAX,DWORD PTR SS:[EBP-4]
004F3268    8B40 28         MOV EAX,DWORD PTR DS:[EAX+28]
004F326B    8B10            MOV EDX,DWORD PTR DS:[EAX]
004F326D    FF12            CALL DWORD PTR DS:[EDX]                  ;
<--- crash

DS:[45454545]=???

EAX 030F9C48 ASCII
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
ECX 019983F0
EDX 45454545
EBX 019983F0
ESP 0012FB7C
EBP 0012FB90
ESI 00000000
EDI 00000013
EIP 004F326D Artweave.004F326D
C 0  ES 0023 32bit 0(FFFFFFFF)
P 1  CS 001B 32bit 0(FFFFFFFF)
A 0  SS 0023 32bit 0(FFFFFFFF)
Z 0  DS 0023 32bit 0(FFFFFFFF)
S 0  FS 003B 32bit 7FFDF000(FFF)
T 0  GS 0000 NULL
D 0
O 0  LastErr ERROR_SUCCESS (00000000)
EFL 00010206 (NO,NB,NE,A,NS,PE,GE,G)
ST0 empty -??? FFFF 00005FEE 0F0566FB
ST1 empty -??? FFFF 00000000 0F05070D
ST2 empty -??? FFFF 00000000 00060010
ST3 empty -??? FFFF 00000000 002C006F
ST4 empty -NAN FFFF 8F669BF5 EFE5EDFD
ST5 empty 6.0925232094539560960e+16
ST6 empty -7.8331661972355807100e+18
ST7 empty 5.8691123250627328000e+16
               3 2 1 0      E S P U O Z D I
FST 0020  Cond 0 0 0 0  Err 0 0 1 0 0 0 0 0  (GT)
FCW 1372  Prec NEAR,64  Mask    1 1 0 0 1 0
-----/


9. *Report Timeline*
. 2013-07-04:
Core Security Technologies notifies the Artweaver team of the
vulnerability.

. 2013-07-05:
Vendor asks for a report with technical information.

. 2013-07-05:
Technical details sent to Artweaver team. Core notifies that the
publication date is scheduled for the end of July.

. 2013-07-06:
Vendor reproduces the buffer overrun and notifies that they are looking
for the cause of the problem.

. 2013-07-10:
Vendor notifies that this vulnerability will be fixed with the next
Artweaver update v3.1.6, scheduled for July 20th.

. 2013-07-10:
Core re-schedules the advisory publication for Monday 22nd.

. 2013-07-20:
Vendor notifies patched versions were released and aditional information
for Artweaver users. [Sec. 6]

. 2013-07-22:
Advisory CORE-2013-0701 released.


10. *References*

[1] http://www.artweaver.de.
[2] http://www.b-e-soft.com/products#artweaver.
[3]
http://www.coresecurity.com/system/files/attachments/2013/07/CORE-2013-0701-artweaver-poc-28ab190b137f3.zip
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/27047.zip

11. *About CoreLabs*

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with anticipating the future needs and requirements for information
security technologies. We conduct our research in several important
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attack planning and simulation, source code auditing, and cryptography.
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12. *About Core Security Technologies*

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13. *Disclaimer*

The contents of this advisory are copyright (c) 2013 Core Security
Technologies and (c) 2013 CoreLabs, and are licensed under a Creative
Commons Attribution Non-Commercial Share-Alike 3.0 (United States)
License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/


14. *PGP/GPG Keys*

This advisory has been signed with the GPG key of Core Security
Technologies advisories team, which is available for download at
http://www.coresecurity.com/files/attachments/core_security_advisories.asc.