Date: 13 August 2002
References: ESB-2002.358 ESB-2002.472
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AUSCERT External Security Bulletin Redistribution
ESB-2002.421 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0207-197
Sec. Vulnerability in Apache Server Chunk Encoding Rev 06
13 August 2002
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Apache Server
OpenView Network Node Manager (NNM)
OpenView Service Information Portal (OVSIP)
Vendor: Hewlett-Packard
Operating System: HP-UX
Solaris
Impact: Denial of Service
Increased Privileges
Execute Arbitrary Code/Commands
Access Required: Remote
Ref: AA-2002.04
AL-2002.06
ESB-2002.358
- --------------------------BEGIN INCLUDED TEXT--------------------
Document ID: HPSBUX0207-197
Date Loaded: 20020701
Title: Sec. Vulnerability in Apache Server Chunk Encoding Rev 06
-----------------------------------------------------------------
**REVISED 06**
HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0207-197
Originally issued: 01 July 2002
Last revision: 08 Aug 2002
-----------------------------------------------------------------
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: A remotely exploitable potential for vulnerability in
handling of large data chunks in Apache-based web servers.
**REVISED 06**
PLATFORM: HP9000 Servers running HP-UX release 11.00, 11.04, 11.11
11.20, and 11.22 with the HP Apache product installed.
- --->> affected OpenView Products:
- --->> Network Node Manager (NNM) 6.01, 6.1, 6.2, 6.31
- --->> running on HP-UX and Solaris
- --->> NNM on Windows NT/W2K is not affected.
- --->> OV Service Information Portal (OVSIP) 1.0, 2.0, 3.0
DAMAGE: Potential for increased privilege, denial of service, or
execution of arbitrary code.
**REVISED 06**
SOLUTION: For HP-UX releases 11.00, 11.11, 11.20 and 11.22 download
- --->> new product bundles from
- --->> http://www.software.hp.com/ISS_products_list.html
For only HP-UX release 11.04 (VV-OS): apply patches
PHSS_27361 - for VV 4.6 release,
PHSS_27371 - for VV 4.5 release.
- --->> For OV NNM 6.2
- --->> PHSS_27638 for HPUX 10.20
- --->> PHSS_27639 for HPUX 11.X
- --->> PSOV_03199 for SOLARIS 6,7,8
- --->> patches for NNM6.01, 6.1, 6.31 are under investigation
- --->> For OV SIP 3.0
- --->> PHSS_27547 for HPUX 11.X
- --->> Note: PHSS_27547 has been superseded by PHSS_27668.
- --->> OVSIPSOL_00004 for SOLARIS 6,7,8
- --->> Note: OVSIPSOL_00004 has been superseded
- --->> by OVSIPSOL_00005.
- --->> no patches are planned for OVSIP 1.0 and 2.0
MANUAL ACTIONS: Install repaired binary.
AVAILABILITY: Complete product bundles are available now for 11.00
and 11.11 are available for PA-RISC architecture
- --->> are available from
- --->> http://www.software.hp.com/ISS_products_list.html
HP-UX 11.04 (VV-OS) patches are available now at
itrc.hp.com
CHANGE SUMMARY: Rev.01 - Do not install the bundle on NNM.
Rev.02 - Added Virtualvault patches.
Rev.03 - Re-released 1.3.26 bits due to an update
deficiency and other minor problems.
Rev.04 - Added IPF versions.
Rev.05 - Added IPv6 PA-RISC version.
Rev.06 - Added affected OpenView Products,
revised location of Apache product
bundles.
------------------------------------------------------------------
A. Background
The CERT Advisory CA-2002-17 regarding Apache affects the
following HP products:
B9415AA Apache 1.3.x PA-RISC HP-UX releases 11.00 and 11.11
B9416AA Apache 2.x PA-RISC HP-UX releases 11.00 and 11.11
B9415AA Apache 1.3.x IPF HP-UX releases 11.20 and 11.22
B9416AA Apache 2.x IPF HP-UX releases 11.20 and 11.22
B9416BA Apache 2.x IPv6 PA_RISC HP-UX release 11.11
*** REVISED 06 ***
- --->> OpenView NNM 6.01, 6.1, 6.2, 6.31 running on HPUX or SOLARIS
- --->> OpenView SIP 1.0, 2.0, 3.0 running on HPUX or SOLARIS
HP Apache 1.3.26 (PA-RISC)
installs into /opt/apache and /opt/tomcat
disk space: 55-65 MB
documents: /opt/apache/htdocs/doc
HP Apache 2.0.39 (PA-RISC)
installs into /opt/hpapache2
disk space: 80-90 MB
documents: /opt/hpapache2/hp_apache_docs
HP Apache 1.3.26 (IPF)
installs into /opt/apache and /opt/tomcat
disk space: 65-75 MB
documents: /opt/apache/hp_apache_docs
HP Apache 2.0.39 (IPF)
installs into /opt/hpapache2
disk space: 80-90 MB
documents: /opt/hpapache2/hp_apache_docs
HP Apache 2.0.39 IP version 6 (PA-RISC)
installs into /opt/hpapache2
disk space: 80-90 MB
documents: /opt/hpapache2/hp_apache_docs
Before updating, make sure to stop your previous HP Apache
binary. Otherwise, the previous binary will continue running,
preventing the new one from automatically starting, although
the installation would have been successful.
The command to stop the HP Apache binary is:
For 1.3.26:
/opt/apache/bin/apachectl stop
For 2.0.39:
/opt/hpapache2/bin/apachectl stop
HP Apache automatically starts upon installation if port 80
is available.
Installation of this new version of HP Apache over an existing
HP Apache installation is supported, while installation over a
non-HP Apache is NOT supported.
==================================================================
An advisory has been issued for HP Compaq systems. Please
refer to HP Compaq SSRT2253, which says in part:
CSWS Secure Web Server for HP Tru64 UNIX and HP OpenVMS
"Potential Apache Web Server Chunk Handling Vulnerability"
Patches are available for CSWS for HP Tru64 UNIX at:
http://tru64unix.compaq.com/internet/download.htm#sws_v591
Patches are available for CSWS for HP OpenVMS at:
http://www.openvms.compaq.com/openvms/products/ips/apache/
+csws_patches.html
B. Fixing the problem
The Virtualvault product (also known as HP-UX 11.04) has
patches for its 4.5 and 4.6 releases. The patch for VV 4.6
updates the outside web server to the Apache 1.3.26 version
from the Apache 1.3.22 version shipped with the VV 4.6 release.
For the VV 4.5 patch, the security fix from the Apache 1.3.26
version was backported to the 1.3.19 version per the Apache
Group's patch for httpd 1.2.0-1.3.22.
Both of these Virtualvault patches are available in itrc.hp.com.
PHSS_27361 - for VV 4.6 release.
PHSS_27371 - for VV 4.5 release.
**REVISED 06**
- --->> Fixes for the following versions can be downloaded from
- --->> http://www.software.hp.com/ISS_products_list.html :
- --->> hp apache-based web server v.1.3.26.03
- --->> on hp-ux 11.0 and 11i (pa-risc)
- --->> hp apache-based web server v.1.3.26.03
- --->> on hp-ux 11i version 1.5 and 1.6 (ipf)
- --->> hp apache-based web server v.2.0.39.03
- --->> on hp-ux 11.0 and 11i (pa-risc)
- --->> hp apache-based web server v.2.0.39.03
- --->> on hp-ux 11i (pa-risc) for ipv6
- --->> hp apache-based web server v.2.0.39.03
- --->> on hp-ux 11i version 1.5 and 1.6 (ipf)
*** REVISED 06 ***
- --->> OpenView NNM patches are now available
- --->> For OV NNM 6.2
- --->> PHSS_27638 for HPUX 10.20
- --->> PHSS_27639 for HPUX 11.X
- --->> PSOV_03199 for SOLARIS 6,7,8
- --->> patches for NNM6.01, 6.1, 6.31 are under investigation
- --->> OpenView SIP patches are now available
- --->> For OV SIP 3.0
- --->> PHSS_27547 for HPUX 11.X
- --->> Note: PHSS_27547 has been superseded by PHSS_27668.
- --->> OVSIPSOL_00004 for SOLARIS 6,7,8
- --->> Note: OVSIPSOL_00004 has been superseded
- --->> by OVSIPSOL_00005.
- --->> no patches are planned for OVSIP 1.0 and 2.0
- --->> OpenView patches can be downloaded from:
- --->> http://support.openview.hp.com/cpe/patches
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://ftp.itrc.hp.com/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
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.
________________________________________________________________
- -----End of Document ID: HPSBUX0207-197--------------------------------------
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