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Home » Hacking News » CSSA-2002-SCO.21-sort command creates temporary files insecurely

CSSA-2002-SCO.21-sort command creates temporary files insecurely

by Nikola Strahija on May 30th, 2002 The sort command creates and uses temporary files insecurely. Names can be predicted, and spoofed with symbolic links.


2. Vulnerable Supported Versions

System Binaries
----------------------------------------------------------------------
OpenServer 5.0.5 /bin/sort
OpenServer 5.0.6 /bin/sort


3. Solution

The proper solution is to install the latest packages.


4. OpenServer 5.0.5

4.1 Location of Fixed Binaries

ftp://stage.caldera.com/pub/security/openserver/CSSA-2002-SCO.21


4.2 Verification

MD5 (VOL.000.000) = ebaac320d491aae20385b0c54af794fb

md5 is available for download from
ftp://stage.caldera.com/pub/security/tools/


4.3 Installing Fixed Binaries

Upgrade the affected binaries with the following commands:

1) Download the VOL* files to the /tmp directory

Run the custom command, specify an install from media images,
and specify the /tmp directory as the location of the images.


5. OpenServer 5.0.6

5.1 Location of Fixed Binaries

ftp://stage.caldera.com/pub/security/openserver/CSSA-2002-SCO.21


5.2 Verification

MD5 (VOL.000.000) = ebaac320d491aae20385b0c54af794fb

md5 is available for download from
ftp://stage.caldera.com/pub/security/tools/


5.3 Installing Fixed Binaries

Upgrade the affected binaries with the following commands:

1) Download the VOL* files to the /tmp directory

Run the custom command, specify an install from media images,
and specify the /tmp directory as the location of the images.


6. References

Specific references for this advisory:
none

Caldera UNIX security resources:
http://stage.caldera.com/support/security/

Caldera OpenLinux security resources:
http://www.caldera.com/support/security/index.html

This security fix closes Caldera incidents sr848813,
SCO-1-238, erg711767 .


7. Disclaimer

Caldera International, Inc. 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 Caldera products.


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