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                                  CERT-Renater

                       Note d'Information No. 2005/VULN446
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DATE                      : 26/07/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running SAP prior to version 6.40 Patch 11.

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NISCC Vulnerability Advisory 228614/NISCC/SAP

Directory Traversal Issues with the SAP Internet Graphics Server Product

Version Information
- -------------------
Advisory Reference  228614/NISCC/SAP
Release Date	    25 July 2005
Last Revision	    18 July 2005
Version Number	    1.0

Acknowledgement
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This issue was identified by Corsaire Ltd, a privately owned UK company.

What is affected?
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The following versions of the product are affected:

- - SAP prior to version 6.40 Patch 11

Impact
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If exploited, this vulnerability can result in unintended information disclosure.

Severity
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This is rated as high.

Summary
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The Internet Graphics Server (IGS) is a subcomponent of the SAP R/3 enterprise environment, which
is also accessible over HTTP and contains minimalistic web server functionality.

The vulnerability is related to how the IGS product validates document paths that is passed to it.

The details of this issue were passed to SAP on the 5th July 2005; they have since addressed the
problem and have solutions available to rectify the flaw. Please see the 'Solution' section for
further details.

[Please note that revisions to this advisory will not be notified by email. All subscribers
are advised to regularly check the NISCC website
(http://www.niscc.gov.uk/niscc/vulnAdv-en.html) for updates to this notice.]

Details
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CVE ID: CAN-2005-1691

By entering an HTTP document path that incorporates a directory traversal sequence to the IGS
product, it is possible to access documents outside of the web root with the privileges of the
user that was used to start the IGS service.

Mitigation
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To minimise the risk of this vulnerability, we suggest the following:

. Please ensure that the IGS product is not available externally

It is also possible to deactivate the IGS product completely; details on how this can be done are
described in the SAP Note 862169.

Solution
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Please upgrade to the newest stable version of the software.

Vendor Information
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Founded in 1972, SAP is headquartered in Walldorf, Germany. SAP is listed on several exchanges,
including the Frankfurt Stock Exchange and the New York Stock Exchange, under the symbol "SAP."

For more information regarding SAP, please visit http://www.sap.com/.

Credits
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This issue was discovered by Corsaire Ltd, who reported the issue to NISCC. The NISCC
Vulnerability Team would also like to thank SAP for their co-operation in the handling of this vulnerability.

What is NISCC?
- --------------
For further information regarding the UK National Infrastructure Security Co-ordination
Centre, please visit http://www.niscc.gov.uk.

Reference to any specific commercial product, process, or service by trade name, trademark
manufacturer, or otherwise, does not constitute or imply its endorsement, recommendation, or
favouring by NISCC. The views and opinions of authors expressed within this notice shall not
be used for advertising or product endorsement purposes.

Neither shall NISCC accept responsibility for any errors or omissions contained within
this advisory. In particular, they shall not be liable for any loss or damage whatsoever,
arising from or in connection with the usage of information contained within this notice.

C 2005 Crown Copyright

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