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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0362 -- [Solaris] Security Vulnerability in the Solaris 9 in.ftpd(1M) Server May Allow Unauthorized Directory Access 29 May 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ftpd Publisher: Sun Microsystems Operating System: Solaris 9 Impact: Inappropriate Access Access: Remote/Unauthenticated CVE Names: CAN-2004-0148 Ref: ESB-2004.0188 Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102356-1 - --------------------------BEGIN INCLUDED TEXT-------------------- Sun(sm) Alert Notification * Sun Alert ID: 102356 * Synopsis: Security Vulnerability in the Solaris 9 in.ftpd(1M) Server May Allow Unauthorized Directory Access * Category: Security * Product: Solaris 9 Operating System * BugIDs: 5012436 * Avoidance: Workaround * State: Workaround * Date Released: 18-May-2006 * Date Closed: * Date Modified: 1. Impact A security vulnerability in the Solaris 9 in.ftpd(1M) server may allow local or remote unprivileged users to access directories outside of their home directory or to log in with their $HOME directory set to "/" (slash). This issue is also described in CAN-2004-0148 at http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0148 2. Contributing Factors This issue can occur in the following releases: SPARC Platform * Solaris 9 x86 Platform * Solaris 9 Notes: 1. Solaris 8 and Solaris 10 are not affected by this issue. 2. This issue only affects systems configured as FTP servers with either the 'restricted-uid' or 'restricted-gid' clause in the ftpaccess(4) file. To determine if the in.ftpd service is enabled on a system the following command can be used: $ ftp remote-host Connected to remote-host.domain.com. 220 remote-host FTP server ready. Name (remote-host:username): 3. Symptoms There are no predictable symptoms that would indicate the described issue has been exploited. 4. Relief/Workaround To work around the described issue until patches can be applied, disable the in.ftpd(1M) daemon with the following steps: 1. Edit the "/etc/inetd.conf" file and comment out the following line by prepending the "#" symbol, as in the following example: #ftp stream tcp6 nowait root /usr/sbin/in.ftpd in.ftpd 2. Send the inetd(1M) process a hangup signal (SIGHUP) to that inetd will reread the inetd.conf configuration file: # pkill -HUP inetd This will disable in.ftpd(1M). 5. Resolution A final resolution is pending completion. This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements. Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved - --------------------------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 iQCVAwUBRHp2Vih9+71yA2DNAQIcwQP/e0AFaZlUBjUxF+cIrBoTggzbfqSfyc27 M4WqAZDeLAZBSciQLuMLlXhZtMXqZq11T9omzL/p8d3f5Irli7fyp4yqlYz0XUA0 mIqMehURAN//isufZayAwK15Bt+LO8S1JVEpQtE8PGEKwL0uPrqyvmH1K8xvoEkp RUdPzILU30o= =p+Xc -----END PGP SIGNATURE-----