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Home » Hacking News » OpenPKG SA-2003.023: delegate remote code execution

OpenPKG SA-2003.023: delegate remote code execution

by Nikola Strahija on March 22nd, 2003 A remote code execution vulnerability exists in the application level gateway DeleGate, version 8.4.0 and earlier. Fetching a large robots.txt file through DeleGate HTTP proxy could result in a buffer overflow.


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________________________________________________________________________

OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security.html http://www.openpkg.org
[email protected] [email protected]
OpenPKG-SA-2003.023 19-Mar-2003
________________________________________________________________________

Package: delegate
Vulnerability: remote code execution
OpenPKG Specific: no

Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= delegate-8.3.4-20030222 >= delegate-8.5.0-20030306
OpenPKG 1.2 <= delegate-8.3.3-1.2.0 >= delegate-8.3.3-1.2.1
OpenPKG 1.1 <= delegate-7.9.11-1.1.0 >= delegate-7.9.11-1.1.1

Dependent Packages: none

Description:
According to a SNS security advisory [0], a remote code execution
vulnerability exists in the application level gateway DeleGate [1]
version 8.4.0 and earlier. Fetching a large robots.txt file through
DeleGate HTTP proxy could result in a buffer overflow.

Please check whether you are affected by running "/bin/rpm
-q delegate". If you have the "delegate" package installed and its
version is affected (see above), we recommend that you immediately
upgrade it (see Solution). [2][3]

Solution:
Select the updated source RPM appropriate for your OpenPKG release
[4][5], fetch it from the OpenPKG FTP service [6][7] or a mirror
location, verify its integrity [8], build a corresponding binary RPM
from it [2] and update your OpenPKG installation by applying the
binary RPM [3]. For the current release OpenPKG 1.2, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).

$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/1.2/UPD
ftp> get delegate-8.3.3-1.2.1.src.rpm
ftp> bye
$ /bin/rpm -v --checksig delegate-8.3.3-1.2.1.src.rpm
$ /bin/rpm --rebuild delegate-8.3.3-1.2.1.src.rpm
$ su -
# /bin/rpm -Fvh /RPM/PKG/delegate-8.3.3-1.2.1.*.rpm
________________________________________________________________________

References:
[0] http://www.lac.co.jp/security/english/snsadv_e/63_e.html
[1] http://www.delegate.org/
[2] http://www.openpkg.org/tutorial.html#regular-source
[3] http://www.openpkg.org/tutorial.html#regular-binary
[4] ftp://ftp.openpkg.org/release/1.1/UPD/delegate-7.9.11-1.1.1.src.rpm
[5] ftp://ftp.openpkg.org/release/1.2/UPD/delegate-8.3.3-1.2.1.src.rpm
[6] ftp://ftp.openpkg.org/release/1.1/UPD/
[7] ftp://ftp.openpkg.org/release/1.2/UPD/
[8] http://www.openpkg.org/security.html#signature
________________________________________________________________________

For security reasons, this advisory was digitally signed with
the OpenPGP public key "OpenPKG " (ID 63C4CB9F)
of the OpenPKG project which you can find under the official URL
http://www.openpkg.org/openpkg.pgp or on http://keyserver.pgp.com/. To
check the integrity of this advisory, verify its digital signature by
using GnuPG (http://www.gnupg.org/). For instance, pipe this message to
the command "gpg --verify --keyserver keyserver.pgp.com".
________________________________________________________________________

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