Sec. Vulnerability in OpenSSH on HP-UX

Sec. Vulnerability in OpenSSH on HP-UX

Post by Security Ale » Sat, 29 Jun 2002 04:55:52



-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

 -----------------------------------------------------------------
   HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0195,
   Originally issued: 27 June 2002
 -----------------------------------------------------------------

The information in the following Security Advisory should be acted
upon as soon as possible.  Hewlett-Packard Company 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.

 ------------------------------------------------------------------
PROBLEM:  OpenSSH input validation errors can cause faults from
          remote hosts in SSH protocol version 2.

PLATFORM: HP 9000 Servers running HP-UX release 11.00, and 11.11
          only with the T1471AA SSH product installed.

DAMAGE:   Possible privilege increases, from remote locations.

SOLUTION: Disable PAMAuthenticationViaKbdInt in sshd_config.

MANUAL ACTIONS: Edit sshd_config appropriately.

AVAILABILITY: n/a

 ------------------------------------------------------------------
A. Background
    Pursuant to the CERT Advisory CA-2002-18 on OpenSSH,
    Hewlett-Packard Company has learned of a defect in the
    code in SSH, product number T1471AA.

B. Fixing the problem
   As a short-term solution, disable PAMAuthenticationViaKbdInt
   in the sshd_config file; i.e.,

       PAMAuthenticationViaKbdInt no

   The CERT advisory mentions adding the following line to
   /etc/ssh/sshd_config:
        ChallengeResponseAuthentication no
   NOTE:
   ChallengeResponseAuthentication is not used in the HP product.

   HP is working to produce a patch for its version which is based
   on OpenSSH release 3.1p1.  This advisory will be updated to a
   bulletin when that patch is released.

C. To subscribe to automatically receive future NEW HP Security
   Bulletins from the HP IT Resource Center via electronic
   mail, do the following:

   Use your browser to get to the HP IT Resource Center page at:

       http://itrc.hp.com

    Use the 'Login' tab at the left side of the screen to login
    using your ID and password.  Use your existing login or the
    "Register" button at the left to create a login, in order to
    gain access to many areas of the ITRC.  Remember to save the
    User ID assigned to you, and your password.

    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
    the page), select "Support Information Digests".

    To -subscribe- to future HP Security Bulletins or other
    Technical Digests, click the check box (in the left column)
    for the appropriate digest and then click the "Update
    Subscriptions" button at the bottom of the page.

    or

    To -review- bulletins already released, select the link
    (in the middle column) for the appropriate digest.

    To -gain access- to the Security Patch Matrix, select
    the link for "The Security Bulletins Archive".  (near the
    bottom of the page)  Once in the archive the third link is
    to the current Security Patch Matrix. Updated daily, this
    matrix categorizes security patches by platform/OS release,
    and by bulletin topic.  Security Patch Check completely
    automates the process of reviewing the patch matrix for
    11.XX systems.

    For information on the Security Patch Check tool, see:
    http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
    displayProductInfo.pl?productNumber=B6834AA"

    The security patch matrix is also available via anonymous
    ftp:

    ftp.itrc.hp.com:~ftp/export/patches/hp-ux_patch_matrix

    On the "Support Information Digest Main" page:
    click on the "HP Security Bulletin Archive".

D. To report new security vulnerabilities, send email to


   Please encrypt any exploit information using the
   security-alert PGP key, available from your local key
   server, or by sending a message with a -subject- (not body)

   Permission is granted for copying and circulating this
   Advisory to Hewlett-Packard (HP) customers (or the Internet
   community) for the purpose of alerting them to problems,
   if and only if, the Advisory 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.
 ________________________________________________________________

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--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California



 
 
 

Sec. Vulnerability in OpenSSH on HP-UX

Post by sjk » Sat, 29 Jun 2002 06:37:54


I guess this doesn't effect 10.20 -- as there is no Pam??


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1

>  -----------------------------------------------------------------
>    HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0195,
>    Originally issued: 27 June 2002
>  -----------------------------------------------------------------

> The information in the following Security Advisory should be acted
> upon as soon as possible.  Hewlett-Packard Company 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.

>  ------------------------------------------------------------------
> PROBLEM:  OpenSSH input validation errors can cause faults from
>           remote hosts in SSH protocol version 2.

> PLATFORM: HP 9000 Servers running HP-UX release 11.00, and 11.11
>           only with the T1471AA SSH product installed.

> DAMAGE:   Possible privilege increases, from remote locations.

> SOLUTION: Disable PAMAuthenticationViaKbdInt in sshd_config.

> MANUAL ACTIONS: Edit sshd_config appropriately.

> AVAILABILITY: n/a

>  ------------------------------------------------------------------
> A. Background
>     Pursuant to the CERT Advisory CA-2002-18 on OpenSSH,
>     Hewlett-Packard Company has learned of a defect in the
>     code in SSH, product number T1471AA.

> B. Fixing the problem
>    As a short-term solution, disable PAMAuthenticationViaKbdInt
>    in the sshd_config file; i.e.,

>        PAMAuthenticationViaKbdInt no

>    The CERT advisory mentions adding the following line to
>    /etc/ssh/sshd_config:
>         ChallengeResponseAuthentication no
>    NOTE:
>    ChallengeResponseAuthentication is not used in the HP product.

>    HP is working to produce a patch for its version which is based
>    on OpenSSH release 3.1p1.  This advisory will be updated to a
>    bulletin when that patch is released.

> C. To subscribe to automatically receive future NEW HP Security
>    Bulletins from the HP IT Resource Center via electronic
>    mail, do the following:

>    Use your browser to get to the HP IT Resource Center page at:

>        http://itrc.hp.com

>     Use the 'Login' tab at the left side of the screen to login
>     using your ID and password.  Use your existing login or the
>     "Register" button at the left to create a login, in order to
>     gain access to many areas of the ITRC.  Remember to save the
>     User ID assigned to you, and your password.

>     In the left most frame select "Maintenance and Support".

>     Under the "Notifications" section (near the bottom of
>     the page), select "Support Information Digests".

>     To -subscribe- to future HP Security Bulletins or other
>     Technical Digests, click the check box (in the left column)
>     for the appropriate digest and then click the "Update
>     Subscriptions" button at the bottom of the page.

>     or

>     To -review- bulletins already released, select the link
>     (in the middle column) for the appropriate digest.

>     To -gain access- to the Security Patch Matrix, select
>     the link for "The Security Bulletins Archive".  (near the
>     bottom of the page)  Once in the archive the third link is
>     to the current Security Patch Matrix. Updated daily, this
>     matrix categorizes security patches by platform/OS release,
>     and by bulletin topic.  Security Patch Check completely
>     automates the process of reviewing the patch matrix for
>     11.XX systems.

>     For information on the Security Patch Check tool, see:
>     http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
>     displayProductInfo.pl?productNumber=B6834AA"

>     The security patch matrix is also available via anonymous
>     ftp:

>     ftp.itrc.hp.com:~ftp/export/patches/hp-ux_patch_matrix

>     On the "Support Information Digest Main" page:
>     click on the "HP Security Bulletin Archive".

> D. To report new security vulnerabilities, send email to


>    Please encrypt any exploit information using the
>    security-alert PGP key, available from your local key
>    server, or by sending a message with a -subject- (not body)

>    Permission is granted for copying and circulating this
>    Advisory to Hewlett-Packard (HP) customers (or the Internet
>    community) for the purpose of alerting them to problems,
>    if and only if, the Advisory 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.
>  ________________________________________________________________

> -----BEGIN PGP SIGNATURE-----
> Version: PGP Personal Security 7.0.3

> iQA/AwUBPRtqeeAfOvwtKn1ZEQKuSQCg4tbbfPnQ0EOVuUYn1KF9KSMlzMkAnRyW
> p1Qlew00/wl1NrAQboXwS2T+
> =NPUo
> -----END PGP SIGNATURE-----

> --
> Yours truly,
> HP S/W Security Team
> WTEC Cupertino, California




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