Description:
A portability workaround was applied in version 1.2.9 of the FTP
server ProFTPD [1]. As a side-effect, CIDR based (aaa.bbb.ccc.ddd/NN)
ACL entries in "Allow" and "Deny" directives act like an "AllowAll"
directive and so FTP clients are granted access to files and
directories although the server configuration might explicitly deny
this [2].
Please check whether you are affected by running "<prefix>/bin/rpm -q
proftpd". If you have the "proftpd" package installed and its version
is affected (see above), we recommend that you immediately upgrade it
(see Solution) [3][4].
Solution:
Select the updated source RPM appropriate for your OpenPKG release
[5], fetch it from the OpenPKG FTP service [6] or a mirror location,
verify its integrity [7], build a corresponding binary RPM from it
[3] and update your OpenPKG installation by applying the binary RPM
[4]. For the most recent release OpenPKG 2.0, perform the following
operations to permanently fix the security problem (for other releases
adjust accordingly).
$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.0/UPD
ftp> get proftpd-1.2.9-2.0.1.src.rpm
ftp> bye
$ <prefix>/bin/openpkg rpm -v --checksig proftpd-1.2.9-2.0.1.src.rpm
$ <prefix>/bin/openpkg rpm --rebuild proftpd-1.2.9-2.0.1.src.rpm
$ su -
# <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/proftpd-1.2.9-2.0.1.*.rpm
________________________________________________________________________
For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <openpkg (at) openpkg (dot) org [email concealed]>" (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
for details on how to verify the integrity of this advisory.
________________________________________________________________________
Hash: SHA1
________________________________________________________________________
OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security.html http://www.openpkg.org
openpkg-security (at) openpkg (dot) org [email concealed] openpkg (at) openpkg (dot) org [email concealed]
OpenPKG-SA-2004.018 30-Apr-2004
________________________________________________________________________
Package: proftpd
Vulnerability: privilege escalation
OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= proftpd-1.2.9-20040207 >= proftpd-1.2.10rc1-20040429
OpenPKG 2.0 <= proftpd-1.2.9-2.0.0 >= proftpd-1.2.9-2.0.1
OpenPKG 1.3 N.A. none
Dependent Packages: none
Description:
A portability workaround was applied in version 1.2.9 of the FTP
server ProFTPD [1]. As a side-effect, CIDR based (aaa.bbb.ccc.ddd/NN)
ACL entries in "Allow" and "Deny" directives act like an "AllowAll"
directive and so FTP clients are granted access to files and
directories although the server configuration might explicitly deny
this [2].
Please check whether you are affected by running "<prefix>/bin/rpm -q
proftpd". If you have the "proftpd" package installed and its version
is affected (see above), we recommend that you immediately upgrade it
(see Solution) [3][4].
Solution:
Select the updated source RPM appropriate for your OpenPKG release
[5], fetch it from the OpenPKG FTP service [6] or a mirror location,
verify its integrity [7], build a corresponding binary RPM from it
[3] and update your OpenPKG installation by applying the binary RPM
[4]. For the most recent release OpenPKG 2.0, perform the following
operations to permanently fix the security problem (for other releases
adjust accordingly).
$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.0/UPD
ftp> get proftpd-1.2.9-2.0.1.src.rpm
ftp> bye
$ <prefix>/bin/openpkg rpm -v --checksig proftpd-1.2.9-2.0.1.src.rpm
$ <prefix>/bin/openpkg rpm --rebuild proftpd-1.2.9-2.0.1.src.rpm
$ su -
# <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/proftpd-1.2.9-2.0.1.*.rpm
________________________________________________________________________
References:
[1] http://www.proftpd.org/
[2] http://bugs.proftpd.org/show_bug.cgi?id=2267
[3] http://www.openpkg.org/tutorial.html#regular-source
[4] http://www.openpkg.org/tutorial.html#regular-binary
[5] ftp://ftp.openpkg.org/release/2.0/UPD/proftpd-1.2.9-2.0.1.src.rpm
[6] ftp://ftp.openpkg.org/release/2.0/UPD/
[7] http://www.openpkg.org/security.html#signature
________________________________________________________________________
For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <openpkg (at) openpkg (dot) org [email concealed]>" (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
for details on how to verify the integrity of this advisory.
________________________________________________________________________
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Comment: OpenPKG <openpkg (at) openpkg (dot) org [email concealed]>
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