XSS in HTML Sanitization Component in Microsoft Office products
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2012-2520 |
| CWE-ID | CWE-79 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software Subscribe |
Microsoft Communicator Client/Desktop applications / Messaging software Microsoft Lync Client/Desktop applications / Messaging software Microsoft Office InfoPath Client/Desktop applications / Office applications Microsoft Office Web Apps Client/Desktop applications / Office applications Microsoft Office Client/Desktop applications / Office applications Microsoft SharePoint Server Server applications / Application servers Groove Server Server applications / Other server solutions Microsoft Windows SharePoint Services Web applications / Other software |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Cross-site scripting
EUVDB-ID: #VU4236
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C]
CVE-ID: CVE-2012-2520
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks and gain elevated privileges.
The vulnerability exists due to insufficient sanitization of user-input within HTML Sanitization Component. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user’s browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Note: the vulnerability was being actively exploited.
Install update from vendor's website.
Microsoft Communicator: 2007
Microsoft Office InfoPath: 2007 - 2010
Microsoft Lync: 2010
Microsoft SharePoint Server: 2010
Groove Server: 2010
Microsoft Windows SharePoint Services: 3.0
Microsoft Office Web Apps: 2010
Microsoft Office: 2007 - 2010
External linkshttp://technet.microsoft.com/en-us/library/security/ms12-066
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
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.
