Vulnerability identifier: #VU1270

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2008-4254

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Visual FoxPro
Universal components / Libraries / Software for developers
Microsoft Visual Basic
Universal components / Libraries / Software for developers

Vendor: Microsoft

Description
The vulnerability alows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to a buffer overflow in the Hierarchical FlexGrid ActiveX Control. A remote attacker can construct a specially crafted Web page, trick the victim into viewing it, trigger memory corruption and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Mitigation
Install update from vendor's website:

Microsoft Visual Basic 6.0 Runtime Extended Files:
https://www.microsoft.com/downloads/details.aspx?familyid=E27EEBCB-095D-43EC-A19E-4A46E591715C
Microsoft Visual FoxPro 8.0 Service Pack 1:
https://www.microsoft.com/downloads/details.aspx?familyid=A6977F81-F7F6-486B-96AD-8D296D79F205
Microsoft Visual FoxPro 9.0 Service Pack 1:
https://www.microsoft.com/downloads/details.aspx?familyid=386D27A6-B2C7-4ACC-BF3E-EDCBC7358172
Microsoft Visual FoxPro 9.0 Service Pack 2:
https://www.microsoft.com/downloads/details.aspx?familyid=5B1F28A9-DA8D-463A-8AE4-DFC8FCC6C41A

Vulnerable software versions

Microsoft Visual FoxPro: 8.0 - 9.0

Microsoft Visual Basic: 6.0

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External links
http://technet.microsoft.com/en-us/library/security/ms08-070.aspx

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.