Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2001.102 -- Debian Security Advisory DSA-032-1
proftpd running as root, /var symlink removal
7 March 2001
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: proftpd
Vendor: Debian
Operating System: Debian Linux
Impact: Increased Privileges
Overwrite Arbitrary Files
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
- - ------------------------------------------------------------------------
Debian Security Advisory DSA-032-1 security@debian.org
http://www.debian.org/security/ Wichert Akkerman
March 7, 2001
- - ------------------------------------------------------------------------
Package: proftpd
Vulnerability: proftpd running as root, /var symlink removal
Debian-specific: yes
The following problems have been reported for the version of proftpd in
Debian 2.2 (potato):
1. There is a configuration error in the postinst script, when the user
enters 'yes', when asked if anonymous access should be enabled.
The postinst script wrongly leaves the 'run as uid/gid root' configuration
option in /etc/proftpd.conf, and adds a 'run as uid/gid nobody' option that
has no effect.
2. There is a bug that comes up when /var is a symlink, and proftpd is
restarted. When stopping proftpd, the /var symlink is removed; when it's
started again a file named /var is created.
The above problems have been corrected in proftpd-1.2.0pre10-2.0potato1.
We recommend you upgrade your proftpd package immediately.
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 2.2 alias potato
- - -------------------------------------
Potato was released for the alpha, arm, i386, m68k, powerpc and sparc
architectures.
Source archives:
http://security.debian.org/dists/stable/updates/main/source/proftpd_1.2.0pre10-2.0potato1.diff.gz
MD5 checksum: d75281d5332b005efd94ad0ff5ac3f63
http://security.debian.org/dists/stable/updates/main/source/proftpd_1.2.0pre10-2.0potato1.dsc
MD5 checksum: 8ff4de189c0b986ab4496ef7ae6467f4
http://security.debian.org/dists/stable/updates/main/source/proftpd_1.2.0pre10.orig.tar.gz
MD5 checksum: a1c25e59bb4281e2f83000796dc52388
Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/proftpd_1.2.0pre10-2.0potato1_alpha.deb
MD5 checksum: 2e3d924a93692fc546f76fadf6e35cf7
ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/proftpd_1.2.0pre10-2.0potato1_arm.deb
MD5 checksum: 2e2e9a921f45c6c73f0c0a1ba2c7fb13
Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/proftpd_1.2.0pre10-2.0potato1_i386.deb
MD5 checksum: 9c0ff3c87e4802316081775fcf80c5d2
Motorola 680x0 architecture:
http://security.debian.org/dists/stable/updates/main/binary-m68k/proftpd_1.2.0pre10-2.0potato1_m68k.deb
MD5 checksum: 615709bf8777da7939217cf316c529b7
PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/proftpd_1.2.0pre10-2.0potato1_powerpc.deb
MD5 checksum: 5a384113e857ba4a0b6bdcfce62ca880
Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/proftpd_1.2.0pre10-2.0potato1_sparc.deb
MD5 checksum: c99f335bca49f98867b1a9c473c97edc
These files will be moved into
ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.
For not yet released architectures please refer to the appropriate
directory ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .
- - --
- - ----------------------------------------------------------------------------
apt-get: deb http://security.debian.org/ stable/updates main
dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
- -----BEGIN PGP SIGNATURE-----
Version: 2.6.3ia
Charset: noconv
iQB1AwUBOqWQLajZR/ntlUftAQHWRgL/UhpFFB7Jkdf61VMxkEnhaepLYEvzzP/8
KUbfZvk5GDwFEIR0O/Y6KyNDV5Gn/ttgZ5iPcY05za0vngFMsJ0BuFFmiKkViHle
wxcUMvoCiLJQhDWTs18K+k4V9tzL4UUY
=Jx23
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/Information/advisories.html
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key
iQCVAwUBOqY+Rih9+71yA2DNAQGbhgP/fa/nAWJXrdVNUHyS1KVPmAFOXx3hRCfd
7cgLI5GKNgR1nifjCIvsanrsNslpCnuCGYSD64X8wXZVJM3gp6lrZfu10ZU9LdU6
JZOgC2a+NgxzszMe4OcqNk6r7kLmHxhvPHkLsWw0LfyKLsAejPrv8uHCl4XTTSCz
DSqiKq/EqYw=
=NmwD
-----END PGP SIGNATURE-----