Zero-day vulnerability in Microsoft Internet Explorer

Heap-based buffer overflow
CVE-2006-4777

Vulnerability details

Advisory: SB2006091403 - Multiple vulnerabilities in Microsoft Internet Explorer

Vulnerable component: Microsoft Internet Explorer

CVE-ID: CVE-2006-4777

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-119 - Memory corruption

Description:

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

The vulnerability exists due to heap-based buffer overflow within DirectAnimation Path ActiveX control (daxctle.ocx) when handling unexpected input. A remote attacker can create a specially crafted web page, 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 being actively exploited.

Public Exploits:

- Microsoft Internet Explorer - Daxctle.OCX KeyFrame Method Heap Buffer Overflow (MS06-067) (Metasploit) [Exploit-DB]

- Microsoft Internet Explorer - COM Object Remote Heap Overflow [Exploit-DB]

External links:

https://technet.microsoft.com/library/security/ms06-067
https://technet.microsoft.com/library/security/925444

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.