-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN SunOS ftp client Vulnerability October 5, 1998 17:00 GMT Number J-004 ______________________________________________________________________________ PROBLEM: A vulnerability has been discovered in the ftp client software. PLATFORM: SunOS versions 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 5.5, 5.5_x86, 5.4, 5.4_x86, 5.3, 4.1.4 and 4.1.3_U1 DAMAGE: If exploited, a malicious ftp server can trick the ftp client into executing arbitrary commands. SOLUTION: Apply patches. ______________________________________________________________________________ VULNERABILITY Risk is high. Sun recommends that you install the patches ASSESSMENT: listed in section 4 immediately. ______________________________________________________________________________ [ Start Sun Microsystems Advisory ] ______________________________________________________________________________ Sun Microsystems, Inc. Security Bulletin Bulletin Number: #00176 Date: September 30, 1998 Cross-Ref: Title: ftp ______________________________________________________________________________ The information contained in this Security Bulletin is provided "AS IS." Sun makes no warranties of any kind whatsoever with respect to the information contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW. IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. If any of the above provisions are held to be in violation of applicable law, void, or unenforceable in any jurisdiction, then such provisions are waived to the extent necessary for this disclaimer to be otherwise enforceable in such jurisdiction. ______________________________________________________________________________ 1. Bulletins Topics Sun announces the release of patches for Solaris(tm) 2.6, 2.5.1, 2.5, 2.3 (SunOS(tm) 5.6, 5.5.1, 5.5, 5.3), SunOS 4.1.4 and 4.1.3_U1 which relate to a vulnerability in the ftp program. Sun estimates that the release of patches for Solaris 2.4 (SunOS 5.4) that relate to the same vulnerability will be available within 9 weeks of the date of this bulletin. Sun recommends that you install the patches listed in section 4 immediately on systems running SunOS 5.6, 5.5.1, 5.5, 5.3, 4.1.4 and 4.1.3_U1 on systems that use ftp. 2. Affected Supported Versions SunOS versions 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 5.5, 5.5_x86, 5.4, 5.4_x86, 5.3, 4.1.4 and 4.1.3_U1 3. Understanding the Vulnerability The ftp command is the user interface to the Internet standard File Transfer Protocol (FTP). ftp transfers files to and from a remote network site. A vulnerability has been discovered in ftp client software whereby a malicious ftp server can trick the ftp client into executing arbitrary commands. 4. List of Patches The following patches are available in relation to the above problem. SunOS Patch ID _____ _________ SunOS 5.6 106522-01 SunOS 5.6_x86 106523-01 SunOS 5.5.1 103603-09 SunOS 5.5.1_x86 103604-09 SunOS 5.5 103577-09 SunOS 5.5_x86 103578-09 SunOS 5.4 101945-60 ( available in 9 weeks ) SunOS 5.4_x86 101946-53 ( available in 9 weeks ) SunOS 5.3 101653-02 SunOS 4.1.4 104477-04 SunOS 4.1.3_U1 104454-04 ______________________________________________________________________________ APPENDICES A. Patches listed in this bulletin are available to all Sun customers via World Wide Web at: B. Checksums for the patches listed in this bulletin are available via World Wide Web at: C. Sun security bulletins are available via World Wide Web at: D. Sun Security Coordination Team's PGP key is available via World Wide Web at: E. To report or inquire about a security problem with Sun software, contact one or more of the following: - Your local Sun answer centers - Your representative computer security response team, such as CERT - Sun Security Coordination Team. 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[ End Sun Microsystems Advisory ] ______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Sun Microsystems for the information contained in this bulletin. ______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. 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Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) I-086: Cisco CRM Temporary File Vulnerability I-087: Microsoft PPTP Security Vulnerabilities I-088: NFS clients rpc.pcnfsd Vulnerability I-089: SGI Seyon Security Vulnerability I-090: HP-UX dtmail/rpc.ttdbserverd Vulnerability I-091: Stack Overflow in ToolTalk RPC Service I-092: Ping Buffer Overflow Vulnerability J-001: Windows NT RPC Spoofing Denial of Service Vulnerability J-002: SGI IRIX Mail(1)/mailx(1) Security Vulnerabilities J-003: SGI IRIX On-Line Customer Registration Vulnerabilities -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBNhoz5rnzJzdsy3QZAQHL2AP7BQbcP8OkQg2MZSpuKRT3dn3pqVzGL5WX zLTLdQzIrLDc3dbRQ0WtaOe3EBwI8TSu9wP7QBU72PGg4rQEhQ4sgJmopVesyT06 oHAf9E1/AMGODw+VwwP3a0OD0FamlCCKpRin+72f2Bc9RZ0qgiWNQqniza5F3joC J1iJMfybUxY= =ZET2 -----END PGP SIGNATURE-----