Severity: High
12 February, 2008
Summary:
- This vulnerability affects: Internet Explorer 7 and earlier versions
- How an attacker exploits it: By enticing one of your users to visit a malicious Web page
- Impact: In the worst case, the attacker an execute code on your user’s computer, gaining complete control of it
- What to do: Deploy the appropriate Internet Explorer patches immediately
Severity: High
12 February, 2008
Summary:
- This vulnerability affects: Internet Explorer 7 and earlier versions
- How an attacker exploits it: By enticing one of your users to visit a malicious Web page
- Impact: In the worst case, the attacker an execute code on your user’s computer, gaining complete control of it
- What to do: Deploy the appropriate Internet Explorer patches immediately
Exposure:
In a security bulletin released today as part of its monthly patch update, Microsoft describes four memory corruption vulnerabilities in Internet Explorer (IE) versions 5.01, 6.0, and 7.0. Though they differ technically, all four vulnerabilities share the same general characteristics: IE doesn’t properly handle certain HTML objects, properties, or image files, which causes memory corruption. By luring one of your users into visiting a maliciously crafted Web page, an attacker can exploit one of these memory corruption vulnerabilities to execute code on that user’s computer, inheriting that user’s privileges. Typically, Windows users have local administrative privileges. In that case, the attacker could gain complete control of the victim’s computer.
In addition to fixing these four newly announced flaws, today’s Internet Explorer patch also fixes all previously known flaws.
Solution Path:
These patches fix serious issues. You should download, test, and deploy the appropriate IE patches as soon as possible.
- Internet Explorer 5.01
- Internet Explorer 6.0
-
- Microsoft no longer supports 98, ME, or XP SP1
- For Windows 2000
- For Windows XP SP2
- For Windows XP x64
- For Windows Server 2003
- For Windows Server 2003 Itanium
- For Windows Server 2003 x64
-
- Internet Explorer 7.0
For All WatchGuard Users:
These attacks travel as normal-looking HTTP traffic, which you must allow if your network users need to access the World Wide Web. Therefore, the patches above are your best solution.
Status:
Microsoft has released patches to fix these vulnerabilities.