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Citrix Presentation Server Print Provider Buffer Overflow Vulnerability
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Secunia Advisory:
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SA23869
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Release Date:
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2007-01-25
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Popularity:
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7,908 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | Citrix MetaFrame Presentation Server 3.x
Citrix MetaFrame XP for Windows 1.x
Citrix Presentation Server 4.x
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| CVE reference: | CVE-2007-0444
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Description:
A vulnerability has been reported in Citrix Presentation Server, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in a print provider (ccprov.dll) when handling arguments passed to the "EnumPrintersW()" and "OpenPrinter()" functions. This can be exploited to e.g. cause a stack-based buffer overflow by passing an overly long string (more than 130 bytes) as the first argument to the "OpenPrinter()" function through a local API call or RPC request.
Successful exploitation allows execution of arbitrary code.
The vulnerability reportedly affects Citrix MetaFrame XP and Presentation Server version 4.0 and prior.
Solution:
Apply hotfix (see vendor advisory for details).
Provided and/or discovered by:
Discovered by an anonymous researcher and reported via ZDI.
Original Advisory:
Citrix:
http://support.citrix.com/article/CTX111686
ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-07-006.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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