(The following pre-advisory is also available in PDF format for download at:
http://www.cybsec.com/vuln/CYBSEC-Security_Pre-Advisory_SAP_IGS_Remote_Arbitrary_File_Removal.pdf )

CYBSEC S.A.
www.cybsec.com

Pre-Advisory Name: SAP Internet Graphics Service (IGS) Remote Arbitrary File Removal

Vulnerability Class: Path Traversal

Release Date: 12/05/2006

Affected Applications:

• SAP IGS 6.40 Patchlevel <= 16
• SAP IGS 7.00 Patchlevel <= 6

Affected Platforms:

• AIX 64 bits
• HP-UX on IA64 64bit
• HP-UX on PA-RISC 64bit
• Linux on IA32 32bit
• Linux on IA64 64bit
• Linux on Power 64bit
• Linux on x86_64 64bit
• Linux on zSeries 64bit
• OS/400 V5R2M0
• Solaris on SPARC 64bit
• TRU64 64bit
• Windows Server on IA32 32bit
• Windows Server on IA64 64bit
• Windows Server on x64 64bit

Local / Remote: Remote

Severity: High

Author: Mariano Nuñez Di Croce

Vendor Status:

• Confirmed, update released.

Reference to Vulnerability Disclosure Policy:

http://www.cybsec.com/vulnerability_policy.pdf

Product Overview:

"The IGS provides a server architecture where data from an SAP System or other sources can be used to
generate graphical or non-graphical output."

It is important to note that IGS is installed and activated by default with the Web Application Server
(versions >= 6.30)

Vulnerability Description:

A specially crafted HTTP request can remove any file located in SAP IGS file-system.

Technical Details:

Technical details will be released three months after publication of this pre-advisory. This was
agreed upon with SAP to allow their customers to
upgrade affected software prior to technical knowledge been publicly available.

Impact:

Under UNIX systems, successful exploitation of this vulnerability may allow an attacker to remotely
remove files existing on the SAP IGS file-system.
These files must have write permission for SAP System Administrator account (<SID>adm).

Under Microsoft Windows systems, successful exploitation of this vulnerability may allow an attacker
to remove any files existing on the SAP IGS
file-system.

Solutions:

SAP has released patches to address this vulnerability. Affected customers should apply the patches
immediately.

Vendor Response:

• 11/03/2006: Initial Vendor Contact.
• 11/06/2006: Vendor Confirmed Vulnerability.
• 11/29/2006: Vendor Releases Update for version 6.40.
• 11/29/2006: Vendor Releases Update for version 7.00.
• 12/05/2006: Pre-Advisory Public Disclosure.

Special Thanks:

Thanks goes to Carlos Diaz and Victor Montero.

Contact Information:

For more information regarding the vulnerability feel free to contact the author at mnunez {at}
cybsec.com. Please bear in mind that technical details
will be disclosed to the general public three
months after the release of this pre-advisory.

For more information regarding CYBSEC: www.cybsec.com
(c) 2006 - CYBSEC S.A. Security Systems