Date Discovered June 13, 2006
Description Microsoft Internet Explorer is prone to address-bar spoofing. Attackers may exploit this via a malicious web page to spoof the contents of a page that the victim may trust. This vulnerability may be useful in phishing or other attacks that rely on content spoofing.
- Microsoft Internet Explorer 5.0.1
- Microsoft Internet Explorer 5.0.1 SP1
- Microsoft Internet Explorer 5.0.1 SP2
- Microsoft Internet Explorer 5.0.1 SP3
- Microsoft Internet Explorer 5.0.1 SP4
- Microsoft Internet Explorer 5.0.1 for Windows 2000
- Microsoft Internet Explorer 5.0.1 for Windows 95
- Microsoft Internet Explorer 5.0.1 for Windows 98
- Microsoft Internet Explorer 5.0.1 for Windows NT 4.0
- Microsoft Internet Explorer 6.0
- Microsoft Internet Explorer 6.0 SP1
- Microsoft Internet Explorer 6.0 SP2 - do not use
- Microsoft Internet Explorer 7.0 beta1
- Microsoft Internet Explorer 7.0 beta2
Run all software as a nonprivileged user with minimal access rights. Ensure that all non-administrative tasks, such as browsing the web and reading email, are performed as an unprivileged user with minimal access rights.
Do not follow links provided by unknown or untrusted sources. Users should never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.
Set web browser security to disable the execution of script code or active content. Disabling scripting and active content in the Internet Zone may limit exposure to this and other vulnerabilities.
Disable any services that are not needed.
Disable support for HTML email in the email client. This may limit email-based attack vectors for this and other vulnerabilities.
Microsoft has released a cumulative security update to address this issue.
Reportedly, the fixes provided in MS06-013 may cause unintended breakage with certain ActiveX controls. Symantec has not confirmed this. Before deploying this patch in production environments, users should thoroughly test the patch to ensure that it doesn't interfere with other software.
Credits Yorick Koster of ITsec Security Services is credited with the discovery of this vulnerability.
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