Remote code execution in Microsoft Word
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2006-6561 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software |
Other Works Suite Client/Desktop applications / Other client software Microsoft Office Client/Desktop applications / Office applications Microsoft Office for Mac Client/Desktop applications / Office applications Word Viewer Client/Desktop applications / Office applications |
| Vendor |
Microsoft |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU1215
Risk: Critical
CVSSv3.1: 8.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID: CVE-2006-6561
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability is caused by boundary error when processing an unchecked word count in Word files. A remote attacker can create a specially crafted Word file, 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.
Mitigation
Microsoft Office 2000 Service Pack 3
Microsoft Word 2000 - Download the update (KB929139)
Microsoft Office XP Service Pack 3
Microsoft Word 2002 - Download the update (KB929061)
Microsoft Office 2003 Service Pack 2
Microsoft Word 2003 - Download the update (KB929057)
Microsoft Word Viewer 2003 - Download the update (KB924883)
Microsoft Works Suites
Microsoft Works Suite 2004 - Download the update (KB929061) (same as the Microsoft Word 2002 update)
Microsoft Works Suite 2005 - Download the update (KB929061) (same as the Microsoft Word 2002 update)
Microsoft Works Suite 2006 - Download the update (KB929061) (same as the Microsoft Word 2002 update)
Microsoft Office 2004 for Mac
Microsoft Office 2004 for Mac - Download the update (KB932185)Vulnerable software versions
: 2000 - 2003
Works Suite: 2004 - 2006
Microsoft Office: XP - 2003
Microsoft Office for Mac: 2004
Word Viewer: 2003
CPE2.3- cpe:2.3::::2000:*:*:*:*:*:*:
- cpe:2.3::::2002:*:*:*:*:*:*:
- cpe:2.3::::2003:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:works_suite:2004:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:works_suite:2005:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:works_suite:2006:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:microsoft_office:XP:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:microsoft_office: 2000 Service Pack 3:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:microsoft_office_for_mac:2004:*:*:*:*:*:*:
- cpe:2.3:a:microsoft:word_viewer:2003:*:*:*:*:*:*:
http://technet.microsoft.com/library/security/ms07-014
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.
