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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0830 -- [Win] Marshal MailMarshal ARJ Extraction Directory Traversal Vulnerability 13 November 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: MailMarshal Publisher: TippingPoint Operating System: Windows Impact: Create Arbitrary Files Access: Remote/Unauthenticated CVE Names: CVE-2006-5487 Original Bulletin: http://www.marshal.com/kb/article.aspx?id=11450 Comment: Additional steps have been provided by Marshal to eliminate this vulnerability via configuration changes. Check the Marshal advisory for more details. - --------------------------BEGIN INCLUDED TEXT-------------------- ZDI-06-039: Marshal MailMarshal ARJ Extraction Directory Traversal Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-06-039.html November 10, 2006 - -- CVE ID: CVE-2006-5487 - -- Affected Vendor: Marshal - -- Affected Products: MailMarshal SMTP 5.x MailMarshal SMTP 6.x MailMarshal SMTP 2006 MailMarshal for Exchange 5.x - -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since October 24, 2005 by Digital Vaccine protection filter ID 3877, 3878. For further product information on the TippingPoint IPS: http://www.tippingpoint.com - -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Marshal MailMarshal (formerly of NetIQ). Authentication is not required to exploit this vulnerability. The specific flaw exists within the extraction and scanning of ARJ compressed attachments. Due to incorrect sandboxing of extracted filenames that contain directory traversal modifiers such as "../", an attacker can cause an executable to be created in an arbitrary location. While currently existing files can not be over written, an attacker may leverage this vulnerability in a number of ways. For example, by placing a malicious binary in the "all users" startup folder. - -- Vendor Response: Marshal has issued an update to correct this vulnerability. More details can be found at: http://www.marshal.com/kb/article.aspx?id=11450 - -- Disclosure Timeline: 2006.07.17 - Vulnerability reported to vendor 2005.10.24 - Digital Vaccine released to TippingPoint customers 2006.11.10 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by an anonymous researcher. - -- About the Zero Day Initiative (ZDI): Established by TippingPoint, a division of 3Com, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBRVfMxCh9+71yA2DNAQKsuAQAhd+yZpBBAAWSlv5wv0diXlDrTShgMjn9 WEk7FuJ2Ha+h0IrKW/5ROSoJ81v5gafRysJSXDoG1iPT7Dk+i+h6HT58HXk+UUzH qQAeOVNcS+HlcbpnAvc+nTTOCi+115c9Celz9UiFjdbDKafSbjLtlcrllN1lL6Ex Bmm7sRNaqow= =fqzZ -----END PGP SIGNATURE-----