Sec. Vulnerability in telnetd (rev.1)

From: Security Alert (secure@cup.hp.com)
Date: 01/10/03


From: secure@cup.hp.com (Security Alert)
Date: 10 Jan 2003 17:38:41 GMT


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

- -----------------------------------------------------------------
**REVISED 01**
 Source: HEWLETT-PACKARD COMPANY
 SECURITY BULLETIN: HPSBUX0110-172
 Originally issued: 16 October 2001
 Last Revised: 10 January 2003

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

The information in the following Security Bulletin 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 Bulletin as
soon as possible.

 ------------------------------------------------------------------
PROBLEM: Systems running telnetd may permit unauthorized remote
         access.
         See: http://www.cert.org/advisories/CA-2001-21.html

         This vulnerability has been assigned the identifier
         CAN-2001-0554 by the Common Vulnerabilities and Exposures
         (CVE) group:
     http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0554

PLATFORM: HP9000 Servers running HP-UX releases 10.X only.

DAMAGE: An intruder can potentially execute arbitrary code
         with the privileges of the telnetd process.

SOLUTION: Apply the following patches to the release specified.

        10.01 PHNE_24820 ,
        10.10 PHNE_24820 ,
        10.20 PHNE_24821 ,
    SIS 10.20 PHNE_24822 (Telnet kerberos Patch),
        10.24 PHNE_25217.

**REVISED 01**
Note: The Secure Internet Services (SIS) product, if
                enabled, has to be disabled before the installation
                or removal of PHNE_24822 (Telnet kerberos Patch).

**REVISED 01**
MANUAL ACTIONS: No

AVAILABILITY: The patches are available now from
http://itrc.hp.com.

CHANGE SUMMARY: Revision 01 correct MANUAL ACTIONS field
 ------------------------------------------------------------------
 A. Background
     A potential remotely exploitable buffer overflow in telnetd has
     been reported to Hewlett-Packard Company. It is unique to HP-UX
     releases 10.X only.

 B. Fixing the problem
     Disable telnetd (by commenting out the /etc/inetd.conf entry for
     telnetd and running '/usr/sbin/inetd -c') if telentd is not
needed
     on your system.

     Install the appropriate patch from the list below.

 C. Recommended solution

    Apply the following patches to the release specified.

        10.01 PHNE_24820 ,
        10.10 PHNE_24820 ,
        10.20 PHNE_24821 ,
    SIS 10.20 PHNE_24822 (Telnet kerberos Patch),
        10.24 PHNE_25217.

    All patches are available now from http://itrc.hp.com.

 D. 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".

 E. To report new security vulnerabilities, send email to

    security-alert@hp.com

    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)
    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.
 ________________________________________________________________

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

iQA/AwUBPh74n+AfOvwtKn1ZEQLBBwCgy9PH/3p+jNe5Te/o1hgjmWhmuOsAn1Kp
Ehl67+Rw1zmFDrMhPoQ+PX7H
=Q/Ct
-----END PGP SIGNATURE-----

--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California
Return-Path: secure@cup.hp.com
Reply-to: security-alert@hp.com


Relevant Pages

  • Security Vulnerability in SNMP (rev. 10)
    ... The information in the following Security Bulletin should be acted ... Vulnerabilities in SNMP request and trap handling. ... Patches for some affected systems are available now. ...
    (comp.security.misc)
  • Sec. Vulnerability in SNMP (rev. 11)
    ... The information in the following Security Bulletin should be acted ... Vulnerabilities in SNMP request and trap handling. ... Patches for some affected systems are available now. ...
    (comp.security.misc)
  • Security Vulnerability in SNMP (rev. 10)
    ... The information in the following Security Bulletin should be acted ... Vulnerabilities in SNMP request and trap handling. ... Patches for some affected systems are available now. ...
    (comp.security.misc)
  • Sec. Vulnerability in SNMP (rev. 11)
    ... The information in the following Security Bulletin should be acted ... Vulnerabilities in SNMP request and trap handling. ... Patches for some affected systems are available now. ...
    (comp.security.misc)
  • Security Vulnerability in SNMP (rev. 10)
    ... The information in the following Security Bulletin should be acted ... Vulnerabilities in SNMP request and trap handling. ... Patches for some affected systems are available now. ...
    (comp.security.unix)