Debian DSA 377-1: wu-ftpd insecure program execution
by Nikola Strahija on September 4th, 2003 GNU tar supports several command line options which can be abused, by means of this vulnerability, to execute arbitrary programs with the privileges of the wu-ftpd process.
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Debian Security Advisory DSA 377-1 [email protected]
http://www.debian.org/security/ Matt Zimmerman
September 4th, 2003 http://www.debian.org/security/faq
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Package : wu-ftpd
Vulnerability : insecure program execution
Problem-Type : remote
Debian-specific: no
CVE Ids : CVE-1999-0997
wu-ftpd, an FTP server, implements a feature whereby multiple files
can be fetched in the form of a dynamically constructed archive file,
such as a tar archive. The names of the files to be included are
passed as command line arguments to tar, without protection against
them being interpreted as command-line options. GNU tar supports
several command line options which can be abused, by means of this
vulnerability, to execute arbitrary programs with the privileges of
the wu-ftpd process.
Georgi Guninski pointed out that this vulnerability exists in Debian
woody.
For the stable distribution (woody) this problem has been fixed in
version 2.6.2-3woody2.
For the unstable distribution (sid) this problem will be fixed soon.
We recommend that you update your wu-ftpd package.
Upgrade Instructions
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wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 3.0 alias woody
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Source archives:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2.dsc
Size/MD5 checksum: 607 b557af23920403ce4be64670a873a1dd
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2.diff.gz
Size/MD5 checksum: 100389 c2e481768ed3a0d97a110bc3cd4aefa2
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2.orig.tar.gz
Size/MD5 checksum: 354784 b3c271f02aadf663b8811d1bff9da3f6
Architecture independent components:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd-academ_2.6.2-3woody2_all.deb
Size/MD5 checksum: 3474 ae0a727f52cf8f1488222ce2b414a29a
Alpha architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_alpha.deb
Size/MD5 checksum: 291710 d9725bc2a271f151fc42605edd6394c6
ARM architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_arm.deb
Size/MD5 checksum: 265366 d435ee1977a93705462528b23b8c9550
Intel IA-32 architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_i386.deb
Size/MD5 checksum: 257060 ed807ebe3275f76a13eed4fbb2d8a7fa
Intel IA-64 architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_ia64.deb
Size/MD5 checksum: 321256 beaa9b061436052fddf3f47e2932360a
HP Precision architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_hppa.deb
Size/MD5 checksum: 275896 c1bea3e7f0cdbab6c7240d5b08b4b9d1
Motorola 680x0 architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_m68k.deb
Size/MD5 checksum: 249368 32f06b3bbe19265f749670950691c7ff
Big endian MIPS architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_mips.deb
Size/MD5 checksum: 272978 1ec11e5a9b53925b02fb7cfbbc3df56b
Little endian MIPS architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_mipsel.deb
Size/MD5 checksum: 273058 37140e512eaa62cfa0b99b9983e89b6f
PowerPC architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_powerpc.deb
Size/MD5 checksum: 268354 4da902291bc8bb6c5c652dfd9f7ba729
IBM S/390 architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_s390.deb
Size/MD5 checksum: 263100 a89f0be201d65cff953bc496a6391af4
Sun Sparc architecture:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody2_sparc.deb
Size/MD5 checksum: 270448 088bb0a66ee5b74ec59baff506a2be2a
These files will probably be moved into the stable distribution on
its next revision.
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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: [email protected]
Package info: `apt-cache show
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