H-33: HP-UX ftpd/kftpd Vulnerability

PROBLEM:       A vulnerability exists in the ftpd and kftpd executables. 
PLATFORM:      HP 9000 series 700/800s running HP-UX 9.x & 10.x. 
DAMAGE:        This vulnerability may allow local users to gain root 
               privileges. 
SOLUTION:      Apply available patches listed below. 
VULNERABILITY  Exploit details involving this vulnerability has been made 
ASSESSMENT:    publicly available. 


[ Start Hewlett-Packard Advisory ]

==============================================================================
Document Id: [HPSBUX9702-055]
Date Loaded: [02-19-97]

Description: Security Vulnerability in the ftpd/kftpd executable
==============================================================================

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   HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX9702-055, 19 February 1997
-------------------------------------------------------------------------

The information in the following Security Advisory should be acted upon
as soon as possible.  Hewlett Packard will not be liable for any
consequences to any customer resulting from customer's failure to fully
implement instructions in this Security Advisory as soon as possible.

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PROBLEM:  Security Vulnerability in ftpd/kftpd

PLATFORM: HP 9000 Series 700/800s running HP-UX releases 9.X & 10.X

DAMAGE:   Vulnerability may allow regular and anonymous ftp users to
          access files with root privileges

SOLUTION: Apply patch:
          PHNE_10008 for all platforms with HP-UX releases 9.X
          PHNE_10009 for all platforms with HP-UX releases 10.0X/10.10
          PHNE_10010 for all platforms with HP-UX releases 10.20
          PHNE_10011 for all platforms with HP-UX releases 10.20 (kftpd)


AVAILABILITY: All patches are available now.
-------------------------------------------------------------------------
I.
   A. Background
      A vulnerability in the ftpd and kftpd executable has been
      discovered.

   B. Fixing the problem
      The vulnerability can be eliminated from HP-UX releases 9.X and
      10.X by applying the appropriate patch.

   C. Recommended solution
      1. Determine which patch is appropriate for your operating
         system.

      2. Hewlett-Packard's HP-UX patches are available via email
         and the World Wide Web

         To obtain a copy of the Hewlett-Packard SupportLine email
         service user's guide, send the following in the TEXT PORTION
         OF THE MESSAGE to support@us.external.hp.com (no Subject
         is required):
                              send guide

         The users guide explains the HP-UX patch downloading process
         via email and other services available.

         World Wide Web service for downloading of patches
         is available via our URL:
                  (http://us.external.hp.com)

      3. Apply the patch to your HP-UX system.

      4. Examine /tmp/update.log (9.X), or /var/adm/sw/swinstall.log
         (10.X), for any relevant WARNING's or ERROR's.

   D. Impact of the patch
      The patches for HP-UX releases 9.X and 10.X provide enhancements
      to the ppl executable to avoid this vulnerability.

   E. To subscribe to automatically receive future NEW HP Security
      Bulletins from the HP SupportLine mail service via electronic
      mail, do the following:

      1)  From your Web browser, access the URL:

      http://us-support.external.hp.com (US,Canada,
      Asia-Pacific, and Latin-America)

      http://europe-support.external.hp.com  (Europe)

      2)  On the HP Electronic Support Center main screen,
      select the hyperlink "Support Information Digests".

      3)  On the "Welcome to HP's Support Information Digests"
      screen, under the heading "Register Now", select the
      appropriate hyperlink "Americas and Asia-Pacific", or "Europe".

      4)  On the "New User Registration" screen, fill in the fields
      for the User Information and Password and then select the
      button labeled "Submit New User".

      5)  On the "User ID Assigned" screen, select the hyperlink
      "Support Information Digests".

      6)  You should now be on the "HP Support Information Digests
      Main" screen.  You might want to verify that your email address
      is correct as displayed on the screen.  From this screen, you
      may also view/subscribe to the digests, including the security
      bulletins digest.


   F. To report new security vulnerabilities, send email to

          security-alert@hp.com

      Please encrypt exploit information using the security-alert PGP
      key, available from your local key server, or by sending a
      message with a -subject- (not body) of 'get key' (no quotes) to
      security-alert@hp.com.



     Permission is granted for copying and circulating this Bulletin to
     Hewlett-Packard (HP) customers (or the Internet community) for the
     purpose of alerting them to problems, if and only if, the Bulletin
     is not edited or changed in any way, is attributed to HP, and
     provided such reproduction and/or distribution is performed for
     non-commercial purposes.

     Any other use of this information is prohibited. HP is not liable
     for any misuse of this information by any third party.
________________________________________________________________________

[ End Hewlett-Packard Advisory ]

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