Microsoft Vulnerability Research Advisory MSVR12-012
Safari Content-Disposition Handling Could Allow Cross-site Scripting
Microsoft is providing notification of the discovery and remediation of a vulnerability affecting Apple Safari software version 5.1.5 (7534.55.3) for Windows and earlier. Microsoft discovered and disclosed the vulnerability under coordinated vulnerability disclosure to the affected vendor, Apple. Apple has remediated the vulnerability in their software.
The vulnerability exists in the way that Apple Safari handles files with the content disposition header set to 'attachment'. When a file with this value set is opened within the browser any script within the file could be executed inline.
Microsoft Vulnerability Research reported this issue to and coordinated with Apple to ensure remediation of this issue. The vulnerability has been assigned the entry, CVE-2011-3426, in the Common Vulnerabilities and Exposures list. For more information, including information about updates from Apple, see Apple security updates.
- An attacker must convince a victim to click a specially crafted URL or to access a file on a website through Safari, for example by opening an attachment in a web-based email application.
Purpose of Advisory: To notify users of a vulnerability and its remediation.
Advisory Status: Advisory published.
Recommendation: Review the Suggested Actions section and configure as appropriate.
For more information about this issue, see the following references:
|Common Vulnerabilities and Exposures||CVE-2011-3426|
This advisory discusses the following software:
|Safari 5.1.5 (7534.55.3) for Windows and earlier|
Microsoft thanks the following:
- Hidetake Jo of Microsoft and Apple for working toward a resolution
The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
- V1.0 (August 21, 2012): Advisory published.