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Home : Advisories : at(C), login(M), prwarn(C) sadc(ADM), and pt_chmod

Title: at(C), login(M), prwarn(C) sadc(ADM), and pt_chmod
Released by: SCO
Date: 30th November 1994
Printable version: Click here


===========================================================================

                             SCO Advisory 94:001

                             November 30th, 1994

          Patches for at(C), login(M), prwarn(C), sadc(ADM), pt_chmod

- ---------------------------------------------------------------------------



The Santa Cruz Operation has been informed of the following problems present

in our software.



I.   Description



     The programs at(C), login(M), prwarn(C) sadc(ADM), and pt_chmod

     may each allow unauthorized root access to the system. 



     There are four unrelated issues present, one for each program listed

     above.

  

      

II.  Impact

        

     Any user with an account on the system may obtain root access using

     any one of the programs listed.





III. Releases



     These problems exist on the following releases of SCO Products:



        SCO Unix System V/386 Release 3.2 Versions 4.2, 4.1, and 4.0

        SCO Open Desktop Lite Release 3.0

        SCO Open Desktop Release 3.0 and 2.0

        SCO Open Server Network System Release 3.0

        SCO Open Server Enterprise System Release 3.0



IV. Solution



     SCO is providing the following (S)ystem (S)ecurity (E)nhancements, SSEs,

     to address these problems. These are preliminary patches which SCO

     feels addresses the issues at hand, but these patches have not been

     fully tested and integrated and hence cannot officially be supported.

     Official patches should be available in the near future via a

     (S)upport (L)evel (S)upplement. (SLS). The README file mentioned below

     will be updated when an official Supplement is available.



     Binary             Patch

     ------             ------

     at(C)              sse001

     login(M)           sse002

     prwarn(C)          sse003

     sadc(ADM)          sse004

     pt_chmod           sse005





     These are available at the following sites:



     Anonymous ftp: ftp.sco.COM:/SSE



     UUCP downloading, and SOS access:  sosco (USA), scolon (Europe),

     in the directory /usr/spool/uucppublic/SSE. Note that access to these

     Supplements at scolon may not be available until December 2nd, 1994.



     The filename conventions are as follows:



     ssexxx.tar.Z               - compressed tar file of supplement

     ssexxx.ltr.Z               - compressed cover letter for supplement



        xxx indicates the number of the supplement, i.e. sse001.tar.Z.



     See the README file in the directories listed above for checksum

     information. Connection information is available at the end of this

     document.



     Please note that these Supplements are not generally available from

     SCO on diskette media.



If you have further questions, contact your support provider.  If you

need to contact SCO, please send electronic mail to support@sco.COM, or

contact SCO as follows. 



        USA/Canada: 6am-5pm Pacific Standard Time (PST)

        -----------

        1-800-347-4381  (voice)

        1-408-427-5443  (fax)



        Pacific Rim, Asia, and Latin American customers: 6am-5pm Pacific

        ------------------------------------------------ Standard Time

                                                         (PST)

        1-408-425-4726  (voice)

        1-408-427-5443  (fax)



        Europe, Middle East, Africa: 9am-5:30pm British Standard Time (BST)

        ----------------------------

        +44 (0)923 816344 (voice)

        +44 (0)923 817781 (fax)



Downloading Information

- -----------------------



ftp to ftp.sco.com

Login name: ftp

Password: your email address



For anonymous UUCP connection:

- ------------------------------



For USA, Canada, Pacific Rim, Asia and Latin America customers:



Machine name:  sosco

Login name:  uusls  (fourth character is the letter "l")

No password



List of modems available for UUCP transfer from sosco.sco.com:



Standard V.32, (300-9600bps)     4@   408-425-3502

Hayes V Series 9600              2@   408-427-4470

Telebit Trailblazer                   408-429-1786





For Europe/Middle East/Africa customers there is a system located at

SCO EMEA (London):



Machine name:  scolon

Login name:  uusls

Password:  bbsuucp



List of modems available for UUCP transfer from scolon.sco.com:



Dowty Trailblazer  +44 (0)923 210911







For SCO Online Support (SOS) BBS download:

- ------------------------------------------



For those customers that have accounts on SOS these files can be

downloaded interactively via X, Y, Z MODEM or Kermit. Follow the

menus selections under "Toolchest" from the main SOS menu.



List of modems available for interactive transfer from sosco.sco.com:



First four are Standard V.32 (300-9600bps)      408-426-9495

Last three are Hayes 2400 compatible 



Telebit Trailblazer                             408-426-9525







For ftp via World Wide Web:

- ---------------------------



URL to open:  http://www.sco.com



These problems, except for pt_chmod, were reported to the Santa Cruz

Operation by the "[8LGM] Security Team", 8lgm@bagpuss.demon.co.uk. 





- -------------------------- Here is the ftp.sco.com:/SSE/README file -----



Welcome to the System Security Enhancement (SSE) Area

- ----------------------------------------------------



The System Security Enhancement directory, (SSE), is here to 

provide timely fixes to problems with system security.  Binaries

acquired from this directory are to be considered preliminary fixes

only, and have not been fully tested or integrated.  As such, these

patches are not officially supported. They are provided as a timely 

response to security concerns that have been brought to the

attention of The Santa Cruz Operation. 



When final, approved patches are available, usually by a Support Level 

Supplement, the README files below will be modified to indicate the

existence of the finalized version of the supplement.



SCO reserves the right to change the contents of these supplements at any

time.



The format of the Supplements found here are as follows:





ssexxx.tar.Z                    - a compressed tar file 

ssexxx.ltr.Z                    - cover letter, release information,

                                  and installation instructions



where xxx indicates the number of the supplement.



Please note that the ssexxx.tar.Z files are *not* diskette images.



After downloading an SSE, uncompress both the tar file and the cover

letter.  For example, if you were trying to install SSE001, after

downloading sse001.tar.Z and ssexxx.ltr.Z, you would uncompress

both files:



# uncompress ssexxx.tar.Z

# uncompress ssexxx.ltr.Z



After uncompressing both files, you should then follow the instructions

provided in the sse001.ltr file for installation instructions.



These Supplements should be available in the following locations:



site            directory                       method

- ----            ---------                       ------

ftp.sco.COM:    /SSE                            Internet anonymous ftp

sosco:          /usr/spool/uucppublic/SSE       UUCP download, SOS

scolon:         /usr/spool/uucppublic/SSE       UUCP download, SOS







List of New System Security Enhancements (last updated 11/29/94)

- ----------------------------------------------------------------



New on 11/29/94:



sse001:  at(C) Enhancement



sse002:  login(M) Enhancement



sse003:  prwarn(C) Enhancement



see004:  sadc(ADM) Enhancement



sse005:  pt_chmod Enhancement



sse006:  passwd(C) Enhancement



CONNECTION INFORMATION

- ----------------------





For anonymous ftp connection:

- -----------------------------



ftp to sosco.sco.com

Login name: ftp

Password:  your email address



ftp to ftp.sco.com

Login name: ftp

Password:  your email address



(Please note that the ftp server that is running on these machines expects your

Domain Name to be publically known to the net. Please contact

your internet provider for more information on registering your Domain

Name)      





ftp to ftp.uu.net  (NOTE: areas are located in the ./sco-archive directory)

Login name: ftp

Password: your email address







For anonymous UUCP connection:

- ------------------------------



For USA, Canada, Pacific Rim, Asia and Latin America customers:



Machine name:  sosco

Login name:  uusls  (fourth character is the letter "l")

No password



List of modems available for UUCP transfer from sosco.sco.com:



Standard V.32, (300-9600bps)     4@   408-425-3502

Hayes V Series 9600              2@   408-427-4470

Telebit Trailblazer                   408-429-1786





For Europe/Middle East/Africa customers there is a system located at

SCO EMEA (London):



Machine name:  scolon

Login name:  uusls

Password:  bbsuucp



List of modems available for UUCP transfer from scolon.sco.com:



Dowty Trailblazer  +44 (0)923 210911







For SCO Online Support (SOS) BBS download:

- ------------------------------------------



For those customers that have accounts on SOS these files can be

downloaded interactively via X, Y, Z MODEM or Kermit. Follow the

menus selections under "Toolchest" from the main SOS menu.



List of modems available for interactive transfer from sosco.sco.com:



First four are Standard V.32 (300-9600bps)      408-426-9495

Last three are Hayes 2400 compatible 



Telebit Trailblazer                             408-426-9525







For ftp via World Wide Web:

- ---------------------------



URL to open:  http://www.sco.com







- ------------------------------------------------------------------------------



List of available Security Enhancement (SSE) files:            



Numbers in parentheses are checksums of the files, generated using the "sum"

utility with the -r option.  Example: sum -r sse001.tar.Z      



NOTE:  These files are for downloading only. They CANNOT be obtained

       from SCO on diskette.



NOTE:  Please see the ".ltr" files for a list of SCO platforms that

       these Enhancements apply to. 





                 Size in bytes

File name       (checksum)      Description



sse001.ltr.Z      2254 (62340)  at(C) Enhancement  

sse001.tar.Z     28177 (01162)  



sse002.ltr.Z      2122 (64430)  login(M) Enhancement

sse002.tar.Z     60535 (24459)



sse003.ltr.Z      2190 (39557)  prwarn(C) Enhancement

sse003.tar.Z     20742 (53203)



sse004.ltr.Z      2491 (13484)  sadc(ADM) Enhancement

sse004.tar.Z     11936 (27375)



sse005.ltr.Z      1025 (25407)  pt_chmod Enhancement

sse005.tar.Z      2414 (06033)



sse006.ltr.Z       985 (36851)  passwd(C) Enhancement

sse006.tar.Z     86185 (19264)












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