Security Update: [CSSA-2003-SCO.3] UnixWare 7.1.1 Open UNIX 8.0.0 UnixWare 7.1.3 : ftp vulnerability with pipe symbols in filenames
From: security@caldera.com
Date: 03/04/03
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To: bugtraq@securityfocus.com, announce@lists.caldera.com, scoannmod@xenitec.on.ca, full-disclosure@lists.netsys.com From: security@caldera.com Date: Mon, 3 Mar 2003 15:22:09 -0800
To: bugtraq@securityfocus.com announce@lists.caldera.com scoannmod@xenitec.on.ca full-disclosure@lists.netsys.com
______________________________________________________________________________
SCO Security Advisory
Subject: UnixWare 7.1.1 Open UNIX 8.0.0 UnixWare 7.1.3 : ftp vulnerability with pipe symbols in filenames
Advisory number: CSSA-2003-SCO.3
Issue date: 2003 March 03
Cross reference:
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1. Problem Description
By using a filename with a | (pipe symbol) in it, shell
commands can be issued remotely on the machine of a user
who is retrieving files with the FTP client program, from
a compromised or malicious ftp server. This leads to a
compromise of the client machine.
2. Vulnerable Supported Versions
System Binaries
----------------------------------------------------------------------
UnixWare 7.1.1 /usr/bin/ftp
Open UNIX 8.0.0 /usr/bin/ftp
UnixWare 7.1.3 /usr/bin/ftp
3. Solution
The proper solution is to install the latest packages.
4. UnixWare 7.1.1
4.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.3
4.2 Verification
MD5 (erg712227.pkg.Z) = 296bbcf1394f7010397b8d90f9a9978d
md5 is available for download from
ftp://ftp.sco.com/pub/security/tools
4.3 Installing Fixed Binaries
Upgrade the affected binaries with the following sequence:
Download erg712227.pkg.Z to the /var/spool/pkg directory
# uncompress /var/spool/pkg/erg712227.pkg.Z
# pkgadd -d /var/spool/pkg/erg712227.pkg
5. Open UNIX 8.0.0
5.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.3
5.2 Verification
MD5 (erg712227.pkg.Z) = 296bbcf1394f7010397b8d90f9a9978d
md5 is available for download from
ftp://ftp.sco.com/pub/security/tools
5.3 Installing Fixed Binaries
Upgrade the affected binaries with the following sequence:
Download erg712227.pkg.Z to the /var/spool/pkg directory
# uncompress /var/spool/pkg/erg712227.pkg.Z
# pkgadd -d /var/spool/pkg/erg712227.pkg
6. UnixWare 7.1.3
6.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.3
6.2 Verification
MD5 (erg712227.pkg.Z) = 296bbcf1394f7010397b8d90f9a9978d
md5 is available for download from
ftp://ftp.sco.com/pub/security/tools
6.3 Installing Fixed Binaries
Upgrade the affected binaries with the following sequence:
Download erg712227.pkg.Z to the /var/spool/pkg directory
# uncompress /var/spool/pkg/erg712227.pkg.Z
# pkgadd -d /var/spool/pkg/erg712227.pkg
7. References
Specific references for this advisory:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0041
SCO security resources:
http://www.sco.com/support/security/index.html
This security fix closes SCO incidents sr874929, fz527425,
erg712227.
8. Disclaimer
SCO is not responsible for the misuse of any of the information
we provide on this website and/or through our security
advisories. Our advisories are a service to our customers
intended to promote secure installation and use of SCO
products.
9. Acknowledgements
This vulnerability was first published in 1997 on Bugtraq,
and was discovered again by The Hackademy Audit team in
September 2002 during a source code audit.
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