Microsoft OWC Chart component could allow an attacker to verify a file`s existence using the "Load" method
| owc-chart-load-exist (8784) |  Low Risk |
Description:
Microsoft Office Web Components (OWC) could allow a remote attacker to determine if a file resides on the system by setting the "oCS.Load" property to the path of the file. If an error is returned, then file does not reside on the system.
Platforms Affected:
- Microsoft, BackOffice 2000
- Microsoft, BizTalk Server 2000
- Microsoft, BizTalk Server 2002
- Microsoft, Commerce Server 2000
- Microsoft, Commerce Server 2002
- Microsoft, ISA Server 2000
- Microsoft, Money 2002
- Microsoft, Money 2003
- Microsoft, Office 2000
- Microsoft, Office XP
- Microsoft, Office Web Components 2000
- Microsoft, Office Web Components 2002
- Microsoft, Project 2002
- Microsoft, Proxy Server 2.0
- Microsoft, Small Business Server 2000
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS02-044. See References.
Consequences:
Obtain Information
References:
- GreyMagic Security Advisory GM#008-IE, Multiple local files detection issues with OWC in IE at http://sec.greymagic.com/adv/gm008-ie/.
- Internet Security Systems Security Alert, August 22, 2002, Multiple Vulnerabilities in Microsoft Office Web Components at http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21023.
- Microsoft Office Download Center, Office XP Tool: Web Components at http://office.microsoft.com/downloads/2002/owc10.aspx.
- Microsoft Security Bulletin MS02-044, Unsafe Functions in Office Web Components (Q328130) at http://www.microsoft.com/technet/security/bulletin/ms02-044.mspx.
- BID-4454: Microsoft Office Web Components Chart Local File Existence Disclosure Vulnerability
- CVE-2002-1338: The Load method in the Chart component of Office Web Components (OWC) 9 and 10 generates an exception when a specified file does not exist, which allows remote attackers to determine the existence of local files.
- US-CERT VU#156123: Microsoft Office Web Components allows arbitary user to determine whether local file exists via Chart component Load method
Reported:
Apr 08, 2002
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