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HPSBUX03435 SSRT102977 rev.1 - HP-UX Web Server Suite running Apache, Remote Denial of Service (DoS)

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c04926789

Version: 1

HPSBUX03435 SSRT102977 rev.1 - HP-UX Web Server Suite running Apache, Remote Denial of Service (DoS)
NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.

Release Date: 2016-01-07

Last Updated: 2016-01-07


Potential Security Impact: Remote Denial of Service (DoS)

Source: Hewlett Packard Enterprise, HPE Product Security Response Team

VULNERABILITY SUMMARY

Potential security vulnerabilities have been identified with HP-UX Web Server Suite running Apache on HP-UX 11iv3. These vulnerabilities could be exploited remotely to create a Denial of Service (DoS) and other impacts including:
  • The TLS vulnerability using US export-grade 512-bit keys in Diffie-Hellman key exchange known as "Logjam" could be exploited remotely to allow unauthorized modification.
  • The RC4 stream cipher vulnerability in SSL/TLS known as "Bar Mitzvah" could be exploited remotely to allow disclosure of information.
  • Apache does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters.
References:
  • CVE-2015-4000
  • CVE-2015-2808
  • CVE-2015-3183
  • PSRT102977

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

HP-UX Web Server Suite v4.05 HPUXWSATW405 httpd prior to 2.2.29.02

BACKGROUND

CVSS 2.0 Base Metrics
Reference
Base Vector
Base Score
CVE-2015-4000
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
4.3
CVE-2015-2808
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
4.3
CVE-2015-3183
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
5.0
Information on CVSS is documented in HP Customer Notice: HPSN-2008-002

RESOLUTION

HPE has provided the following software updates to resolve the vulnerabilities with HP-UX Web Server Suite running Apache.

The updates are available for download from the following location:

Issues addressed:

  • CVE-2015-4000:

    1. Disable Export cipher by default.
    2. DH parameter with 1024 bits is used by default.
    3. Allow to configure custom DHE or ECDHE parameters by appending the concerned parameter file to the certificate file given for the SSLCertificateFile directive.
  • CVE-2015-2808:

    • Disable RC4 cipher in configuration file.

Notes:

  • HP-UX Web Server Suite v4.06 HPUXWSATW406 contains the following components:

    • Apache B.2.2.29.02
    • Tomcat Servlet Engine C.6.0.43.01
    • PHP 5.4.40.1 (Part of Apache)
    • Webmin A.1.070.13
  • See HPE Security Bulletin HPSBUX03512 for information about resolution for Apache web server of HP-UX 11iv2 at the following location: https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04832246

MANUAL ACTIONS: Yes - Update
Download and install the software update

PRODUCT SPECIFIC INFORMATION
HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HPE and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see: https://www.hp.com/go/swa

The following text is for use by the HP-UX Software Assistant.

AFFECTED VERSIONS

HP-UX B.11.31 IA/PA
===================

hpuxws22APACHE.APACHE
hpuxws22APACHE.AUTH_LDAP
hpuxws22APACHE.MOD_JK
hpuxws22APACHE.MOD_PERL
hpuxws22APACHE.PHP
hpuxws22APACHE.WEBPROXY
action: install revision B.2.2.29.02 or subsequent

hpuxws22TOMCAT.TOMCAT
action: install revision C.6.0.43.01 or subsequent

HP-UX B.11.31 PA
================

hpuxws22APACHE.APACHE2
hpuxws22APACHE.AUTH_LDAP2
hpuxws22APACHE.MOD_JK2
hpuxws22APACHE.MOD_PERL2
hpuxws22APACHE.PHP2
hpuxws22APACHE.WEBPROXY2
action: install revision B.2.2.29.02 or subsequent

HP-UX B.11.23 IA/PA
===================

hpuxws22WEBMIN.HPDOCS
hpuxws22WEBMIN.WEBMIN
action: install revision A.1.070.13 or subsequent

END AFFECTED VERSIONS

HISTORY
Version:1 (rev.1) - 7 January 2016 Initial release

Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy.

Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com.

Report: To report a potential security vulnerability with any HPE supported product, send Email to: security-alert@hpe.com

Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice

Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive

Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB.

3C = 3COM
3P = 3rd Party Software
GN = HP General Software
HF = HP Hardware and Firmware
MU = Multi-Platform Software
NS = NonStop Servers
OV = OpenVMS
PV = ProCurve
ST = Storage Software
UX = HP-UX

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Document title: HPSBUX03435 SSRT102977 rev.1 - HP-UX Web Server Suite running Apache, Remote Denial of Service (DoS)
Document ID: emr_na-c04926789-1
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