From martin.pitt@canonical.com Tue Jun 28 08:45:33 2005 From: Martin Pitt To: ubuntu-security-announce@lists.ubuntu.com Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com Date: Tue, 28 Jun 2005 14:44:11 +0200 Subject: [Full-disclosure] [USN-145-1] wget vulnerabilities =========================================================== Ubuntu Security Notice USN-145-1 June 28, 2005 wget vulnerabilities CAN-2004-1487, CAN-2004-1488, CAN-2004-2014 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 4.10 (Warty Warthog) Ubuntu 5.04 (Hoary Hedgehog) The following packages are affected: wget The problem can be corrected by upgrading the affected package to version 1.9.1-4ubuntu0.1 (for Ubuntu 4.10), or 1.9.1-10ubuntu2.1 (for Ubuntu 5.04). In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Jan Minar discovered a path traversal vulnerability in wget. If the name ".." was a valid host name (which can be achieved with a malicious or poisoned domain name server), it was possible to trick wget into creating downloaded files into arbitrary locations with arbitrary names. For example, wget could silently overwrite the users ~/.bashrc and other configuration files which are executed automatically. (CAN-2004-1487) Jan Minar also discovered that wget printed HTTP response strings from the server to the terminal without any filtering. Malicious HTTP servers could exploit this to send arbitrary terminal sequences and strings which would then be executed and printed to the console. This could potentially lead to arbitrary code execution with the privileges of the user invoking wget. (CAN-2004-1488) Hugo Vázquez Caramés discovered a race condition when writing output files. After wget determined the output file name, but before the file was actually opened (the time window is determined by the delay of the first received data packet), a local attacker with with write permission to the download directory could create a symbolic link with the name of the output file. This could be exploited to overwrite arbitrary files with the permissions of the user invoking wget. (CAN-2004-2014) Updated packages for Ubuntu 4.10 (Warty Warthog): Source archives: http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-4ubuntu0.1.diff.gz Size/MD5: 17337 d26d3048ef9dcc1a0c1eb935ebd31387 http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-4ubuntu0.1.dsc Size/MD5: 614 db27cc31fae83757f116680cc00b6bc1 http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1.orig.tar.gz Size/MD5: 1322378 e6051f1e1487ec0ebfdbda72bedc70ad amd64 architecture (Athlon64, Opteron, EM64T Xeon) http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-4ubuntu0.1_amd64.deb Size/MD5: 439626 d98cd39c187b7c51160dc034542c7fa3 i386 architecture (x86 compatible Intel/AMD) http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-4ubuntu0.1_i386.deb Size/MD5: 425400 01464aa874e60830377f93786731d5b9 powerpc architecture (Apple Macintosh G3/G4/G5) http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-4ubuntu0.1_powerpc.deb Size/MD5: 432242 fd4ec089d03c29537b30f4d5f5ebdf1a Updated packages for Ubuntu 5.04 (Hoary Hedgehog): Source archives: http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-10ubuntu2.1.diff.gz Size/MD5: 82218 35dd343f7e922b6775148106135664bf http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-10ubuntu2.1.dsc Size/MD5: 624 b643f637455eb9bf3d7c186b54e297e5 http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1.orig.tar.gz Size/MD5: 1322378 e6051f1e1487ec0ebfdbda72bedc70ad amd64 architecture (Athlon64, Opteron, EM64T Xeon) http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-10ubuntu2.1_amd64.deb Size/MD5: 211606 187a98a1be4918b96eabaef79f984b09 i386 architecture (x86 compatible Intel/AMD) http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-10ubuntu2.1_i386.deb Size/MD5: 202350 8bce85f98e886eaf9bf213964e0b8e50 powerpc architecture (Apple Macintosh G3/G4/G5) http://security.ubuntu.com/ubuntu/pool/main/w/wget/wget_1.9.1-10ubuntu2.1_powerpc.deb Size/MD5: 209098 4406b8a89a04b103d9d398798a11806b [ Part 1.2, "Digital signature" Application/PGP-SIGNATURE ] [ 196bytes. ] [ Unable to print this part. ] [ Part 2: "Attached Text" ] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/