Debian Security Advisory

DSA-735-1 sudo -- pathname validation race

Date Reported:
01 Jul 2005
Affected Packages:
sudo
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 315115.
In Mitre's CVE dictionary: CVE-2005-1993.
More information:

A local user who has been granted permission to run commands via sudo could run arbitrary commands as a privileged user due to a flaw in sudo's pathname validation. This bug only affects configurations which have restricted user configurations prior to an ALL directive in the configuration file. A workaround is to move any ALL directives to the beginning of the sudoers file; see the advisory at http://www.sudo.ws/sudo/alerts/path_race.html for more information.

For the old stable Debian distribution (woody), this problem has been fixed in version 1.6.6-1.3woody1.

For the current stable distribution (sarge), this problem has been fixed in version 1.6.8p7-1.1sarge1.

Note that packages are not yet ready for certain architectures; these will be released as they become available.

We recommend that you upgrade your sudo package.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6.orig.tar.gz
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1.dsc
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1.diff.gz
Alpha:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_alpha.deb
HP Precision:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_hppa.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_i386.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_m68k.deb
Big-endian MIPS:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_mips.deb
Little-endian MIPS:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.3woody1_sparc.deb

Debian GNU/Linux 3.1 (sarge)

Source:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1.dsc
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1.diff.gz
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_alpha.deb
HP Precision:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_hppa.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_ia64.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_m68k.deb
Big-endian MIPS:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_mips.deb
Little-endian MIPS:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.1sarge1_sparc.deb

MD5 checksums of the listed files are available in the original advisory.