Lattice Diamond Programmer Buffer Overflow

Type packetstorm
Reporter Core Security Technologies
Modified 2012-06-22T00:00:00


                                            `Core Security - Corelabs Advisory  
Lattice Diamond Programmer Buffer Overflow  
1. *Advisory Information*  
Title: Lattice Diamond Programmer Buffer Overflow  
Advisory ID: CORE-2012-0530  
Advisory URL:  
Date published: 2012-06-21  
Date of last update: 2012-06-21  
Vendors contacted: Lattice Semiconductor Corporation  
Release mode: User release  
2. *Vulnerability Information*  
Class: Buffer overflow [CWE-119]  
Impact: Code execution  
Remotely Exploitable: Yes  
Locally Exploitable: No  
CVE Name: CVE-2012-2614  
3. *Vulnerability Description*  
Lattice Diamond Programmer [1] is vulnerable to client-side attacks,  
which can be exploited by remote attackers to run arbitrary code by  
sending specially crafted '.xcf' files.  
4. *Vulnerable packages*  
. Diamond Programmer 1.4.2 for Windows.  
. Older versions are probably affected too, but they were not checked.  
5. *Non-vulnerable packages*  
. Vendor did not provide this information.  
6. *Vendor Information, Solutions and Workarounds*  
The vendor did not reply any contact email sent by Core Security  
Advisories Team. Contact Lattice for further information about this  
issue [2]. Given that this is a client-side vulnerability, affected  
users should not open untrusted '.xcf' files using 'programmer.exe' nor  
7. *Credits*  
This vulnerability was discovered and researched by Daniel Kazimirow and  
Ricardo Narvaja from Core Security Exploit Team.  
8. *Technical Description / Proof of Concept Code*  
This vulnerability can be exploited by opening a specially crafted  
'.xcf' file from 'programmer.exe'. The module 'deployment.exe' may also  
be vulnerable, but this possiblity was not researched any further.  
The XML file showed at [Sec. 8.1] crashes 'programmer.exe' at the address:  
00FB5E23 C2 0400 RETN 4  
and overwrites the SEH chain (there is no SEH protection) with  
'41414141', which is proof that the buffer was overflown. This means  
that there is a buffer overflow vulnerability, and 'EIP' can be set to  
an arbitrary value, allowing an attacker to take control of the machine.  
8.1. *Proof of Concept*  
<?xml version='1.0' encoding='utf-8' ?>  
<!DOCTYPE ispXCF SYSTEM "IspXCF.dtd" >  
<Family>ispLSI 5000VE</Family>  
<Package>128-pin TQFP</Package>  
<FileTime>05/17/02 18:15:33</FileTime>  
<Reinitialize value="TRUE"/>  
<OverideUES value="TRUE"/>  
<TCKFrequency>1.000000 MHz</TCKFrequency>  
<Process>ENTIRED CHAIN</Process>  
<OperationOverride>No Override</OperationOverride>  
<DeGlitch value="TRUE"/>  
<VerifyUsercode value="TRUE"/>  
CableEN HIGH;  
9. *Report Timeline*  
. 2012-05-30:  
Core Security Technologies notifies Lattice Semiconductor Corporation of  
the vulnerability. Publication date is set for June 26th, 2012.  
. 2012-06-06:  
Core notifies Lattice Semiconductor Corporation of the vulnerability.  
. 2012-06-11:  
Core notifies that the previous emails were not answered and requests  
for a reply.  
. 2012-06-11:  
Vendor asks Core to remove their email addresses from Core's mailing lists.  
. 2012-06-11:  
Core requests an email address or any other security contact information  
at Lattice in order to begin discussions in regards to the  
vulnerability. No reply was received.  
. 2012-06-21:  
Advisory CORE-2012-0530 published.  
10. *References*  
[2] Lattice technical support,  
11. *About CoreLabs*  
CoreLabs, the research center of Core Security Technologies, is charged  
with anticipating the future needs and requirements for information  
security technologies. We conduct our research in several important  
areas of computer security including system vulnerabilities, cyber  
attack planning and simulation, source code auditing, and cryptography.  
Our results include problem formalization, identification of  
vulnerabilities, novel solutions and prototypes for new technologies.  
CoreLabs regularly publishes security advisories, technical papers,  
project information and shared software tools for public use at:  
12. *About Core Security Technologies*  
Core Security Technologies enables organizations to get ahead of threats  
with security test and measurement solutions that continuously identify  
and demonstrate real-world exposures to their most critical assets. Our  
customers can gain real visibility into their security standing, real  
validation of their security controls, and real metrics to more  
effectively secure their organizations.  
Core Security's software solutions build on over a decade of trusted  
research and leading-edge threat expertise from the company's Security  
Consulting Services, CoreLabs and Engineering groups. Core Security  
Technologies can be reached at +1 (617) 399-6980 or on the Web at:  
13. *Disclaimer*  
The contents of this advisory are copyright (c) 2011 Core Security  
Technologies and (c) 2011 CoreLabs, and are licensed under a Creative  
Commons Attribution Non-Commercial Share-Alike 3.0 (United States)  
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