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Vulnerability Details : CVE-2010-0483

vbscript.dll in VBScript 5.1, 5.6, 5.7, and 5.8 in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2, when Internet Explorer is used, allows user-assisted remote attackers to execute arbitrary code by referencing a (1) local pathname, (2) UNC share pathname, or (3) WebDAV server with a crafted .hlp file in the fourth argument (aka helpfile argument) to the MsgBox function, leading to code execution involving winhlp32.exe when the F1 key is pressed, aka "VBScript Help Keypress Vulnerability."
Publish Date : 2010-03-03 Last Update Date : 2010-08-21
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- CVSS Scores & Vulnerability Types

CVSS Score
7.6
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute Code
CWE ID 94

- Related OVAL Definitions

Title Definition Id Class Family
MS10-022: Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution (981169) oval:gov.nist.fdcc.patch:def:11658 windows
MS10-022: Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution (981169) oval:gov.nist.USGCB.patch:def:11658 windows
Remote Code Execution vulnerability in VBScript oval:org.mitre.oval:def:8654 windows
VBScript Help Keypress Vulnerability oval:org.mitre.oval:def:7170 windows
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2010-0483

# Product Type Vendor Product Version Update Edition Language
1 OS Microsoft Windows 2000 SP4 Version Details Vulnerabilities
2 OS Microsoft Windows 2003 Server SP2 Version Details Vulnerabilities
3 OS Microsoft Windows 2003 Server SP2 Itanium Version Details Vulnerabilities
4 OS Microsoft Windows Server 2003 SP2 X64 Version Details Vulnerabilities
5 OS Microsoft Windows Xp - SP2 X64 Version Details Vulnerabilities
6 OS Microsoft Windows Xp SP2 Version Details Vulnerabilities
7 OS Microsoft Windows Xp SP3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Microsoft Windows 2000 1
Microsoft Windows 2003 Server 2
Microsoft Windows Server 2003 1
Microsoft Windows Xp 3

- References For CVE-2010-0483

http://blogs.technet.com/msrc/archive/2010/02/28/investigating-a-new-win32hlp-and-internet-explorer-issue.aspx CONFIRM
http://www.securityfocus.com/bid/38463
BID 38463 Microsoft VBScript 'winhlp32.exe' 'MsgBox()' Remote Code Execution Vulnerability Release Date:2010-04-14
http://www.osvdb.org/62632
OSVDB 62632
http://technet.microsoft.com/en-us/security/advisory/981169
Microsoft Advisory http://www.microsoft.com/technet/security/advisory/981169.mspx Microsoft Security Advisory (981169): Vulnerability in VBScript Could Allow Remote Code Execution Revision Note: V2.0 (April 13, 2010): Advisory updated to reflect publication of security bulletin. Summary: Microsoft has completed the investigation into a public report of this vulnerability. We have issued MS10-022 to address this issue. For more information about this issue, including download links for an available security update, please review MS10-022. The vulnerability addressed is the VBScript Help Keypress Vulnerability - CVE-2010-0483.Release Date:2010-04-13
http://www.computerworld.com/s/article/9163298/New_zero_day_involves_IE_puts_Windows_XP_users_at_risk
http://securitytracker.com/id?1023668
SECTRACK 1023668
http://secunia.com/advisories/38727
SECUNIA 38727
http://isec.pl/vulnerabilities10.html
http://isec.pl/vulnerabilities/isec-0027-msgbox-helpfile-ie.txt
http://blogs.technet.com/srd/archive/2010/03/01/help-keypress-vulnerability-in-vbscript-enabling-remote-code-execution.aspx CONFIRM
http://www.theregister.co.uk/2010/03/01/ie_code_execution_bug/
http://www.vupen.com/english/advisories/2010/0485
VUPEN ADV-2010-0485
http://xforce.iss.net/xforce/xfdb/56558
XF ms-win-msgbox-code-execution(56558)
https://www.metasploit.com/svn/framework3/trunk/modules/exploits/windows/browser/ie_winhlp32.rb
http://blogs.technet.com/msrc/archive/2010/03/01/security-advisory-981169-released.aspx CONFIRM
http://technet.microsoft.com/en-us/security/bulletin/ms10-022
Microsoft Security Bulletin MS10-022 Vulnerability in VBScript Could Allow Remote Code Execution (981169) This security update resolves a publicly disclosed vulnerability in VBScript on Microsoft Windows that could allow remote code execution. This security update is rated Important for Microsoft Windows 2000, Windows XP, and Windows Server 2003. On Windows Server 2008, Windows Vista, Windows 7, and Windows Server 2008 R2, the vulnerable code is not exploitable, however, as the code is present, this update is provided as a defense-in-depth measure and has no severity rating.The vulnerability could allow remote code execution if a malicious Web site displayed a specially crafted dialog box on a Web page and a user pressed the F1 key, causing the Windows Help System to be started with a Windows Help File provided by the attacker. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system.
http://www.kb.cert.org/vuls/id/612021
CERT-VN VU#612021
http://www.us-cert.gov/cas/techalerts/TA10-103A.html
CERT TA10-103A

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)

- Metasploit Modules Related To CVE-2010-0483

MS10-022 Microsoft Internet Explorer Winhlp32.exe MsgBox Code Execution
This module exploits a code execution vulnerability that occurs when a user presses F1 on MessageBox originated from VBscript within a web page. When the user hits F1, the MessageBox help functionaility will attempt to load and use a HLP file from an SMB or WebDAV (if the WebDAV redirector is enabled) server. This particular version of the exploit implements a WebDAV server that will serve HLP file as well as a payload EXE. During testing warnings about the payload EXE being unsigned were witnessed. A future version of this module might use other methods that do not create such a warning.
Module type : exploit Rank : great Platforms : Windows


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