From security@PROGENY.COM Fri May 11 04:53:15 2001 From: Progeny Security Team To: BUGTRAQ@SECURITYFOCUS.COM Date: Tue, 8 May 2001 08:54:44 -0500 Subject: [BUGTRAQ] PROGENY-SA-2001-13: gFTP client potentially vulnerable to attack -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 --------------------------------------------------------------------------- PROGENY SERVICE NETWORK -- SECURITY ADVISORY PROGENY-SA-2001-13 --------------------------------------------------------------------------- Synopsis: gFTP client potentially vulnerable to attack. Software: gftp History: 2001-04-18 Vendor patch/fix available 2001-04-30 Update available in Progeny archive 2001-05-08 Advisory sent Affects: Progeny Debian (gftp prior to 2.0.8-1progeny1) Progeny Only: NO Vendor-Status: New Version Released (gftp_2.0.8-1progeny1) $Id: gftp,v 1.5 2001/05/01 20:05:44 esmay Exp $ --------------------------------------------------------------------------- DESCRIPTION Versions of gFTP prior to 2.0.8 had a vulnerability related to format strings which might allow a hostile FTP server to execute code on the client system with the current user's privileges. SOLUTION (See also: UPDATING VIA APT-GET) Upgrade to a fixed version of gFTP. gFTP version 2.0.8 corrects the problem. For your convenience, you may upgrade to the gftp_2.0.8-1progeny1 package. UPDATING VIA APT-GET 1. Ensure that your /etc/apt/sources.list file has a URI for Progeny's update repository: deb http://archive.progeny.com/progeny updates/newton/ 2. Update your cache of available packages for apt(8). Example: # apt-get update 3. Using apt(8), install the new package. apt(8) will download the update, verify its integrity with md5, and then install the package on your system with dpkg(8). Example: # apt-get install gftp UPDATING VIA DPKG 1. Use your preferred FTP/HTTP client to retrieve the following updated files from Progeny's update archive at: http://archive.progeny.com/progeny/updates/newton/ MD5 Checksum Filename -------------------------------- ------------------------------------- 5d14ef5556de541eed9dbc2c3842cd55 gftp-common_2.0.8-1progeny1_i386.deb c086963abd6e085fe0ad8d69d244d89e gftp-gtk_2.0.8-1progeny1_i386.deb 3d9fe053682f05286e606c317ee1d71c gftp-text_2.0.8-1progeny1_i386.deb fc142109adc12a9492c34316ca799b7e gftp_2.0.8-1progeny1_i386.deb Example: $ wget \ http://archive.progeny.com/progeny/updates/newton/gftp-common_2.0.8-1progeny1_i386.deb \ http://archive.progeny.com/progeny/updates/newton/gftp-gtk_2.0.8-1progeny1_i386.deb \ http://archive.progeny.com/progeny/updates/newton/gftp-text_2.0.8-1progeny1_i386.deb \ http://archive.progeny.com/progeny/updates/newton/gftp_2.0.8-1progeny1_i386.deb 2. Use the md5sum command on the retrieved files to verify that they match the md5sum provided in this advisory: Example: $ md5sum gftp-common_2.0.8-1progeny1_i386.deb 3. Then install the replacement package(s) using the dpkg command. Example: # dpkg --install gftp-common_2.0.8-1progeny1_i386.deb gftp-gtk_2.0.8-1progeny1_i386.deb gftp-text_2.0.8-1progeny1_i386.deb gftp_2.0.8-1progeny1_i386.deb WORKAROUND No known workaround exists for this vulnerability. MORE INFORMATION gFTP's changelog can be viewed at http://gftp.seul.org/changelog.html. Progeny advisories can be found at http://www.progeny.com/security/. --------------------------------------------------------------------------- pub 1024D/F92D4D1F 2001-04-04 Progeny Security Team - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org mQGiBDrKpVkRBACS4/hjUliUt9UGTHMUGSZpQlKfBk9OFHmyLHTdjyIBCWRMmOBn RRhag0FgPicVIDndoQvYw3+ESC/RtbuPCBf6DZ7S0+NHhm1SHEbZyHFLkRXJm+IS 29oFmKrfXnXHckCrJFDZbOznRF6dVe7hV8CYi3FtoTjlRbuiHPQCMuy4ewCghAfv eYxfB25AoTdBT7WiG8jd4w8D/iFweuqzTwcWtXEgDbDd21W9hNPLEELgguimCCdP l3GHqw/MUJpIvdYfYhCzTaf4VpvkM5xlJGAcelCUL9qAufwyU8U8JI2YzlbqSlO8 qRwaiwq9qisTKEBb3IQadFqug+ihVdUeP8cuXPvbUEbFt7ILWyUD/kntgFdf1Apo zZWlA/0SM45hV6yomcM7z08tyh4hZTrWX/RUJqe+U1niNAmzPg4P+r8SfXdIkjb2 fZT5h5cYLIiK+kUEkqyPmZwUlgMCCn4IYVd2pcKXKXWE8ympuf3E5wGYeiVpLBM/ th7qdEF87sViV8McfiRuXEonYrs1nSQZX+f4OxvTQqaP46u10rQsUHJvZ2VueSBT ZWN1cml0eSBUZWFtIDxzZWN1cml0eUBwcm9nZW55LmNvbT6IVwQTEQIAFwUCOsql WQULBwoDBAMVAwIDFgIBAheAAAoJEEnBfSP5LU0f/sUAnjDpQs5SnFotNJ7GeIWx Ftf7AvBBAJ0cygWS0XRXxJJq2PKbCbdln+i4d7kEDQQ6yqcjEBAA465SSuC/yvN7 WeZAN9XperqZtxLCVe8hLfrLZ+9/Xn2ysuEEe90rYe1X0HbsB/mInHF3VmT+XvHB VdDQ7o0VMw7aeDgprt3jDQgT8gIesSOhZvulDujmLhykE+FT/V4lKpqO8prv7Ujs AfuC7g/X2dcV1+imNOeivLaCM0+HrwUhdvifWFDwE97wBkrda/vhu9zs3NwMeBVN UYfkRLPm+DGUSQVrteNiYJchhqfJB0mjrd+3FgnpCVgdU4c42epZ2ez/WTgTchoT duMCd1sM9gzvQIih56KzxlGL82PVS2m0PNxSQ8iZpheMMGWregjpjpMRcrRbSXy+ WmPBacOiE/MyxXand+lGzig/9Srm6msUT5jE/lDcfySznJWH8B/fqD7KM5Z0ZM+b 3xV0PzGyMld+m3BfGolqsd5bpo8HaWCWsZVYfgdXjoDPYptsoPdLesN6WIAHA1kU n2kckccz4xOoI/8MqKhkzZe0q5a9sv6RLBWDeVLxJnDuXZgcwCc4OvpcR4HnOE7c U5VsyjYwTkzGWWuQxb8uxng3akHTK2PqeZAnC0tvtuwI7QFhOq/dzz+zHzVH2+Qh 55Aq6DjA9yEs3P7g31wb3duGdWtuIXn+N85GiJdZ1EmJESQCuOYOSHsV4bGxKcpg PIpoSr5QBAUtUOTwN+xC8nNjZtC5OzsAAwYP/1OD/eiEraGpy7Z9scgXBjjb1kly tgq06zGlSMWPEQoN3F87YeMiOsXSeDxJG+cnhvlys1Qoytp9/drsDLANi+Q61A/b aka2IJLudiDu4iUDFb1rgRUERBciA31karPf2IwNjdU8lbulHfxQcjtjj7rbSWOG gxzlPcLp2F5ee3h0qs+XW4UpD6K9f/u9gGT4nMr3owG06uNomlBAsGCVpk9XlRxG x96161vrbmTPUx/o6NhqHNuf5Zh8ZmxQ3PYydywiE9njOtS04TTad24qbdPlVQh2 kjkTdsMCFRGaAB8EYImMT3F0ofon1Q/XWZrRlhkZpzuAKLhdSOW5G+tygNy2IqsH wCYa/rDitYZeNN4EUb5At4HnSBCy86GFQgj+sDFO6yp+h7NLIMeTm0csaSbKEt6o cbn0iMaRbLdHmAm0UHATPho+M2brf3mTztvAPONta2FC9TP1L1ojTDd4mtO9IcdM hjOVqNbuyLXkWgPcSmwhhjB61p3/1M1Y/zfXxLOsi/XJlstYzzKzHa68F1e9dTEz kgeYo1hG5TqMKv1sXfPJHw4N/QVcLoUlpUJZ/kI2OQD5mAhCCZ9PbT2fT4gLhy7U sn0blh/R/0HFSFDwHgmx8mNfw7w0qFbba9/FEE8D5qhyyCx5KTk0OkvRL9OpzO7E jzjdcfb6B2XpgSC8iEYEGBECAAYFAjrKpyMACgkQScF9I/ktTR90vgCggiX108DO S3rhSkmfFuHey8w4RlIAn3nD+uCe+sjCFqVwb+LY2jO3ybjB =6dRm - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iEYEARECAAYFAjr3IisACgkQScF9I/ktTR+Y/gCfYw0cnbxrKput00wA3NY4SdSh JicAn11DklAABz9zuQGdtokyG3TvQ+gT =Qaus -----END PGP SIGNATURE-----