Remote code execution in Microsoft Jet

1) Buffer overflow

EUVDB-ID: #VU1243

Risk: Critical

CVSSv3.1: 8.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2008-1092,CVE-2007-6026,CVE-2005-0944

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: Yes

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to boundary error in Jet database engine when parsing .mdb files. A remote attacker can create a specially crafted .mdb file, trick the victim into opening it and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is publicly disclosed since 2005, however an attack vector was introduced only in 2008. The vulnerability is being actively exploited.

Mitigation

Install the following patch:

Microsoft Windows 2000 Service Pack 4:
https://www.microsoft.com/downloads/details.aspx?familyid=0de12d09-e675-4cf0-bc6f-e42eeb4784a1
Windows XP Service Pack 2:
https://www.microsoft.com/downloads/details.aspx?familyid=3247433f-0aa9-49b8-9e40-c5463a95bcff
Windows XP Professional x64 Edition:
https://www.microsoft.com/downloads/details.aspx?familyid=4915ebc4-5e7b-493e-b8c4-321d40d9a701
Windows Server 2003 Service Pack 1:
https://www.microsoft.com/downloads/details.aspx?familyid=86e3ed62-98f7-46ec-96ab-5e8c123b1288
Windows Server 2003 x64 Edition:
https://www.microsoft.com/downloads/details.aspx?familyid=5dfc867b-74b7-4818-9fc2-d71e7c9d2e38
Windows Server 2003 with SP1 for Itanium-based Systems:
https://www.microsoft.com/downloads/details.aspx?familyid=3452119b-ba4c-4272-82ec-97396b2c2c3d

Vulnerable software versions

Microsoft Jet: 4.0

CPE2.3

• cpe:2.3:a:microsoft:microsoft_jet:4.0:*:*:*:*:*:*:

External links

http://technet.microsoft.com/library/security/ms08-028
http://technet.microsoft.com/library/security/950627
http://marc.info/?l=bugtraq&m=111231465920199&w=2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.