Remote code execution in Microsoft Internet Explorer

1) Use-after-free

EUVDB-ID: #VU5541

Risk: Critical

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2010-0249

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to use-after-free error in Microsoft Internet Explorer. A remote attacker can execute arbitrary code by accessing a pointer associated with a deleted object.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 5.01 - 8

CPE2.3

• cpe:2.3:a:microsoft:microsoft_internet_explorer:5.01:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_internet_explorer:6:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_internet_explorer:7:*:*:*:*:*:*:*

External links

https://technet.microsoft.com/library/security/979352
https://technet.microsoft.com/library/security/ms10-002

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 trick the victim to visit a specially crafted website.

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.