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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0168 -- [Win][UNIX/Linux] Apache mod_jk2 host header buffer overflow 15 February 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Apache mod_jk2 2.0.3-DEV and prior Publisher: US-CERT Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact: Execute Arbitrary Code/Commands Access: Remote/Unauthenticated Original Bulletin: http://www.kb.cert.org/vuls/id/771937 - --------------------------BEGIN INCLUDED TEXT-------------------- US-CERT Vulnerability Note VU#771937 Apache mod_jk2 host header buffer overflow Overview A vulnerability exists the legacy version of the mod_jk2 Apache module. If successfully exploited, an attacker may be able to run arbitrary code on affected system. I. Description The host header allows HTTP 1.1 (RFC 2616) compliant servers to host multiple domains using a single IP address. Per the IOActive Security Advisory Multiple Buffer Overflows in legacy mod_jk2 apache module 2.0.3-DEV and earlier: mod_jk2 versions less than 2.0.4 are vulnerable to multiple stack overflow vulnerabilities. Specifically, IOActive has discovered multiple locations where these vulnerabilities are exploitable via the Host request header in any given request. These overflows all result in remote code execution under the user of the running apache process. Although a legacy module which is end of life, certain vendors may use this module in their products rendering them vulnerable to remote exploitation. II. Impact A remote, unauthenticated attacker may be able to execute arbitrary code. III. Solution Upgrade mod_jk2 2.0.4 addresses this issue. Systems Affected Vendor Status Date Updated Apache HTTP Server Project Vulnerable 14-Feb-2008 References http://www.ioactive.com/vulnerabilities/mod_jk2LegacyBufferOverflowAdvisory.pdf http://today.java.net/pub/n/mod_jk22.0.4 http://www.w3.org/Protocols/rfc2616/rfc2616.html http://www.jmarshall.com/easy/http/#http1.1c1 Credit Thanks to IOActive for information that was used in this report. This document was written by Ryan Giobbi. Other Information Date Public 02/13/2008 Date First Published 02/14/2008 08:19:59 AM Date Last Updated 02/14/2008 CERT Advisory CVE Name CVE-2007-6258 US-CERT Technical Alerts Metric 4.80 Document Revision 7 - --------------------------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 iQCVAwUBR7TLeSh9+71yA2DNAQI51AP/T5EY8LyY7RiPUaoQr5a2uVlXQrke7jon VKJLryrlKAL2oFjZWvO3JmkfYiwNPyG7dIcfxjNzqewDzWyA4pI9mEE0pGBRfwJV a+jiBIsDk3vxumuCF/22sZVTsFY8G6buhDrMqZmqcEm3YoRxDthzHgv2Rl4DyENc kf5oMi4dN70= =mBiQ -----END PGP SIGNATURE-----