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AUSCERT External Security Bulletin Redistribution
ESB-2000.294 -- HP Support Information Digests HPSBUX0007-117
Sec. Vulnerability in ftpd **Rev.03**
18 October 2000
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AusCERT Security Bulletin Summary
---------------------------------
Product: ftpd
Vendor: Hewlett-Packard
Operating System: HP-UX 10.XX and 11.0X
Platform: HP9000
Impact: Root Compromise
Access Required: Remote
Ref: AA-2000.02
AL-2000.09
ESB-2000.152 -- Red Hat
ESB-2000.163 -- FreeBSD
ESB-2000.170 -- NetBSD
ESB-2000.172 -- CERT
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Document ID: HPSBUX0007-117
Date Loaded: 20001015
Title: Sec. Vulnerability in ftpd **Rev.03**
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**REVISED03** HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0117, 11 July '00
Last Revised: 16 Oct. '00
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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.
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PROBLEM: The ftp server (ftpd) on HP-UX allows users root access.
PLATFORM: HP9000 Servers running HP-UX releases 10.XX and 11.0X$.
HP-UX 11.0X - Both Problem #1 and #2 below;
HP-UX 10.2X, 10.10 and 10.01 - Problem #2 only
DAMAGE: Possible unauthorized root access.
**REVISED03**
SOLUTION: Apply appropriate patches listed below.
For HP-UX release 11.00 PHNE_21936,
HP-UX release 11.04 PHNE_22060,
HP-UX release 10.20 PHNE_22057,
HP-UX release 10.24 PHNE_22059,
HP-UX releases 10.01 and 10.10 PHNE_22058.
AVAILABILITY: All patches are available now.
CHANGE SUMMARY: Rev.03 Provided full patch identification, change
from Advisory to Bulletin, and new ftp site.
Rev.02 Added MD5 checksums, 10.00 and 10.10 binaries
Rev.01 Corrected typo in filename to be installed.
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I.
A. Background
There are 2 problems with FTP Server (ftpd) on HP-UX.
1. ftpd handling of the SITE EXEC command that allows remote
users to gain root access. This is possible in the default
configuration of ftpd on HP-UX 11.0X ONLY.
2. ftpd does not properly format the parameters to the
setproctitle() function, allowing users to gain root access.
This problem applies to both 11.0X and 10.XX.
**Revised 03**
Reference: CERT Advisory CA-2000-13 Two Input Validation
Problems in FTPD
B. Fixing the problem
The problem can be fixed by applying a patch.
**Revised 03**
C. Recommended solution
Full swinstallable patches are now available from the HP IT
Resource Center site.
For HP-UX release 11.00 PHNE_21936,
HP-UX release 11.04 PHNE_22060,
HP-UX release 10.20 PHNE_22057,
HP-UX release 10.24 PHNE_22059,
HP-UX release 10.01 and 10.10 PHNE_22058.
Note: There are dependencies for PHNE_22059, HP-UX 10.24.
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
Under the Maintenance and Support Menu (Electronic Support Center):
click on the "more..." link. Then -
Use the 'Login' tab at the left side of the screen to login
using your ID and password. Check with your system
administrator to see if you have an existing login or use
the "Register" button at the left to create a login. You will
need to login in order to gain access to many areas of the ITRC.
Remember to save the User ID assigned to you, and your password.
Under the Maintenance and Support Menu, click on the "more..."
link. 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". Once in
the archive the third link is to our current Security
Patch Matrix. Updated daily, this matrix categorizes security
patches by platform/OS release, and by bulletin topic.
The security patch matrix is also available via anonymous ftp:
**Revised 03**
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.
________________________________________________________________________
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This security bulletin is provided as a service to AusCERT's members. As
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over its content. The decision to use any or all of this information is
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NOTE: This is only the original release of the security bulletin. It may
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Previous advisories and external security bulletins can be retrieved from:
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If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
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On call after hours for emergencies.
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