Date: Mon, 10 Mar 2003 14:46:22 -0800
From: security@sco.com
To: ler@lerctr.org, bugtraq@securityfocus.com, announce@lists.caldera.com
Subject: Security Update: [CSSA-2003-SCO.4.1] UnixWare 7.1.1 Open UNIX 8.0.0 UnixWare 7.1.3 : REVISED: Lax permissions on /dev/X
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To: ler@lerctr.org bugtraq@securityfocus.com announce@lists.caldera.com
______________________________________________________________________________
SCO Security Advisory
Subject: UnixWare 7.1.1 Open UNIX 8.0.0 UnixWare 7.1.3 : REVISED: Lax permissions on /dev/X
Advisory number: CSSA-2003-SCO.4.1
Issue date: 2003 March 10
Cross reference: CSSA-2003-SCO.4
______________________________________________________________________________
1. Problem Description
The /dev/X directory is world readable and writable, and
the files in it are also world readable and writable.
Denial-of-Service attacks are possible, as well as possible
data hijacking. The X server sets these permissions when
it starts up, so there is no workaround for this issue.
This update fixes an install problem on Open UNIX 8 and
UnixWare 7.1.3.
2. Vulnerable Supported Versions
System Binaries
----------------------------------------------------------------------
UnixWare 7.1.1 Standard X Distribution
Open UNIX 8.0.0 Standard X Distribution
UnixWare 7.1.3 Standard X Distribution
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.4.1
4.2 Verification
MD5 (basex711.pkg.Z) = 510888d562f6c2249555fefdae94d49d
MD5 (xserver711.pkg.Z) = 74797f12d6e3e80300980854050f62ef
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 basex711.pkg.Z to the /var/spool/pkg directory
Download xserver711.pkg.Z to the /var/spool/pkg directory
# uncompress /var/spool/pkg/basex711.pkg.Z
# pkgadd -d /var/spool/pkg/basex711.pkg
# uncompress /var/spool/pkg/xserver711.pkg.Z
# pkgadd -d /var/spool/pkg/xserver711.pkg
5. Open UNIX 8.0.0
5.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.4.1
5.2 Verification
MD5 (basex800.pkg) = 73356bedec976a6607bbb4379603c723
MD5 (xserver800.pkg) = 0b6e241a352c45a19eeb66c3ca285c48
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 basex800.pkg to the /var/spool/pkg directory
Download xserver800.pkg to the /var/spool/pkg directory
# pkgadd -d /var/spool/pkg/basex800.pkg
# pkgadd -d /var/spool/pkg/xserver800.pkg
6. UnixWare 7.1.3
6.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.4.1
6.2 Verification
MD5 (basex713.pkg) = 30feecb01b9cb2ad3477840b25896e0d
MD5 (xserver713.pkg) = a97371c5e1f0d3e147d05c6ebb71b3b8
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 basex713.pkg to the /var/spool/pkg directory
Download xserver713.pkg to the /var/spool/pkg directory
# pkgadd -d /var/spool/pkg/basex713.pkg
# pkgadd -d /var/spool/pkg/xserver713.pkg
7. References
Specific references for this advisory:
none
SCO security resources:
http://www.sco.com/support/security/index.html
This security fix closes SCO incidents sr874992, sr874607,
fz527440, erg712231.
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.
______________________________________________________________________________
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