UnixWare 7.1.4 UnixWare 7.1.3 : ppp buffer overflow
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Date: 10/21/05
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To: security-announce@list.sco.com, bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk Date: Thu, 20 Oct 2005 15:46:19 -0700
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______________________________________________________________________________
SCO Security Advisory
Subject: UnixWare 7.1.4 UnixWare 7.1.3 : ppp buffer overflow
Advisory number: SCOSA-2005.41
Issue date: 2005 October 20
Cross reference: sr894991 fz532994 erg712940 CAN-2005-2927
______________________________________________________________________________
1. Problem Description
iDEFENSE has identified a Buffer Overflow vulnerability in
SCO Unixware ppp prompt. Local exploitation of a buffer
overflow vulnerability in the ppp binary, allows attackers
to gain root privileges.
This could lead to the execution of arbitrary code with root
privileges, as ppp is setuid root by default.
The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the following name CAN-2005-2927 to this issue.
2. Vulnerable Supported Versions
System Binaries
----------------------------------------------------------------------
UnixWare 7.1.4 /usr/bin/ppptalk
UnixWare 7.1.3 /usr/bin/ppptalk
3. Solution
The proper solution is to install the latest packages.
4. UnixWare 7.1.4
4.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.41
4.2 Verification
MD5 (erg712940.uw714.pkg.Z) = d47a9958e6dfd44c9b95e1d9489011f4
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 erg712940.uw714.pkg.Z to the /var/spool/pkg directory
# uncompress /var/spool/pkg/erg712940.uw714.pkg.Z
# pkgadd -d /var/spool/pkg/erg712940.uw714.pkg
5. UnixWare 7.1.3
5.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.41
5.2 Verification
MD5 (erg712940.uw713.pkg.Z) = 474799fc2cda9db5c486880599e1cdcc
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 erg712940.uw713.pkg.Z to the /var/spool/pkg directory
# uncompress /var/spool/pkg/erg712940.uw713.pkg.Z
# pkgadd -d /var/spool/pkg/erg712940.uw713.pkg
6. References
Specific references for this advisory:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2927
SCO security resources:
http://www.sco.com/support/security/index.html
SCO security advisories via email
http://www.sco.com/support/forums/security.html
This security fix closes SCO incidents sr894991 fz532994
erg712940.
7. 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.
8. Acknowledgments
The SCO Group would like to thank iDefense for discovering and
reporting this weakness.
______________________________________________________________________________
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