ID

VAR-201409-1154

CVE

CVE-2014-6278

TITLE

GNU Bash shell executes commands in exported functions in environment variables

DESCRIPTION

GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary commands via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271, CVE-2014-7169, and CVE-2014-6277. This vulnerability CVE-2014-6271 , CVE-2014-7169 ,and CVE-2014-6277 Vulnerability due to insufficient fix for.A third party may be able to execute arbitrary commands through a crafted environment. QNAP Systems, Inc. Provided by QTS teeth, Turbo NAS for OS is. QTS for, GNU Bash Vulnerability (JVNVU#97219505) caused by OS Command injection vulnerability (CWE-78) Exists. This vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : University of Electro-Communications Wakisaka Yuki MrAny application permission OS The command may be executed. An attacker can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition. This vulnerability allows users that have been granted access to a shell script to escalate privilege and execute unrestricted commands at the same security level as the Bash script. Customers who need to upgrade the firmware of their Superdome X or HP Converged System 900 for SAP HANA should contact HP Technical Support to obtain the firmware or plan to schedule an onsite visit with an HP Services field service professional. NOTE: HP strongly recommends implementing the following security best practices to help reduce both known and future security vulnerability risks: Isolate the HP Superdome X or HP Converged System 900 for SAP HANA's management network by keeping it separate from the data or production network, and not connecting it directly to the Internet without additional access authentication. Patch and maintain Lightweight Directory Access Protocol (LDAP) and web servers. Use virus scanners, intrusion detection/prevention systems (IDS/IPS), and vulnerability scanners regularly. Apply all recommended HP Firmware updates. ============================================================================ Ubuntu Security Notice USN-2380-1 October 09, 2014 bash vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Summary: Several security issues were fixed in Bash. Software Description: - bash: GNU Bourne Again SHell Details: Michal Zalewski discovered that Bash incorrectly handled parsing certain function definitions. (CVE-2014-6277, CVE-2014-6278) Please note that the previous Bash security update, USN-2364-1, includes a hardening measure that prevents these issues from being used in a Shellshock attack. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: bash 4.3-7ubuntu1.5 Ubuntu 12.04 LTS: bash 4.2-2ubuntu2.6 Ubuntu 10.04 LTS: bash 4.1-2ubuntu3.5 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-2380-1 CVE-2014-6277, CVE-2014-6278 Package Information: https://launchpad.net/ubuntu/+source/bash/4.3-7ubuntu1.5 https://launchpad.net/ubuntu/+source/bash/4.2-2ubuntu2.6 https://launchpad.net/ubuntu/+source/bash/4.1-2ubuntu3.5 . HP Product Firmware Version HP StoreEver ESL G3 Tape Libraries with MCB version 2 680H_GS40701 HP StoreEver ESL G3 Tape Libraries with MCB version 1 656H_GS10801 The firmware is customer installable and is available in the Drivers, Software & Firmware section at the following location: http://www.hp.com/support/eslg3 Notes: - Updating the library firmware requires a reboot of the library. Mitigation Instructions HP recommends the following mitigation steps to reduce the risk of this vulnerability for HP StoreEver ESL G3 Tape Library. - Disable DHCP and only use static IP addressing. This bulletin will be revised when the updates are available. All MDS and Nexus 5K switches can function in this configuration. Access is available through the console port. Open the PXE Configuration Utility on the HP Insight Control server deployment window Select Linux Managed from the Boot Menu options Click the Edit button. Clicking the Edit button displays the Edit Shared Menu Option window Uncheck the x86 option in Operating System and Processor Options and click OK. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Note: the current version of the following document is available here: https://h20564.www2.hp.com/portal/site/hpsc/public/kb/ docDisplay?docId=emr_na-c04478866 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c04478866 Version: 1 HPSBST03129 rev.1 - HP StoreFabric B-series switches running Bash Shell, Remote Code Execution NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2014-10-16 Last Updated: 2014-10-16 Potential Security Impact: Remote code execution Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY A potential security vulnerability has been identified with HP StoreFabric B-series switches running Bash Shell. References: CVE-2014-6271 CVE-2014-6277 CVE-2014-6278 CVE-2014-7169 CVE-2014-7186 CVE-2014-7187 SSRT101747 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. All HP StoreFabric B-series switches BACKGROUND CVSS 2.0 Base Metrics =========================================================== Reference Base Vector Base Score CVE-2014-6271 (AV:N/AC:L/Au:N/C:C/I:C/A:C) 10.0 CVE-2014-6277 (AV:N/AC:L/Au:N/C:C/I:C/A:C) 10.0 CVE-2014-6278 (AV:N/AC:L/Au:N/C:C/I:C/A:C) 10.0 CVE-2014-7169 (AV:N/AC:L/Au:N/C:C/I:C/A:C) 10.0 CVE-2014-7186 (AV:N/AC:L/Au:N/C:C/I:C/A:C) 10.0 CVE-2014-7187 (AV:N/AC:L/Au:N/C:C/I:C/A:C) 10.0 =========================================================== Information on CVSS is documented in HP Customer Notice: HPSN-2008-002 RESOLUTION HP has released the following software updates to resolve the vulnerability in HP StoreFabric B-series switches running Bash Shell. Note: HP and the switch vendor recommend running an active version of Fabric OS (FOS) listed on the HP Single Point of Connectivity Knowledge (SPOCK) website ( http://h20272.www2.hp.com/ ) and applying the work-around information provided in the MITIGATION INFORMATION section below to protect HP StoreFabric B-series switches from this vulnerability. Fabric OS (FOS) v7.3.0b (This version will be available soon and this bulletin will revised at that time) The following focused fix FOS versions are available for the previously released versions and have been renamed to include an additional hexadecimal character appended to the FOS version on which it is based: FOS v7.2.1c1 FOS v7.2.0d6 FOS v7.1.2b1 FOS v7.1.1c1 FOS v7.1.0cb FOS v7.0.2e1 FOS v7.0.0d1 FOS v6.4.3f3 FOS v6.4.2a3 FOS v6.2.2f9 MITIGATION INFORMATION HP recommends the following steps to reduce the risk of this vulnerability: - Place the HP StoreFabric SAN switch and other data center critical infrastructure behind a firewall to disallow access from the Internet. - Change all HP StoreFabric switch default account passwords, including the root passwords, from the default factory passwords. - Examine the list of accounts, including ones on the switch and those existing on remote authentication servers such as RADIUS, LDAP, and TACAS+, to ensure only necessary personnel can gain access to HP StoreFabric FOS switches. Delete guest accounts and temporary accounts created for one-time usage needs. - Utilize FOS password policy management to strengthen the complexity, age, and history requirements of switch account passwords. HISTORY Version:1 (rev.1) - 16 October 2014 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running HP 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 HP Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hp.com. Report: To report a potential security vulnerability with any HP supported product, send Email to: security-alert@hp.com Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via Email: http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins Security Bulletin Archive: A list of recently released Security Bulletins is available here: https://h20564.www2.hp.com/portal/site/hpsc/public/kb/secBullArchive/ 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 MP = MPE/iX MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PI = Printing and Imaging PV = ProCurve ST = Storage Software TU = Tru64 UNIX UX = HP-UX Copyright 2014 Hewlett-Packard Development Company, L.P. Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of Hewlett-Packard products referenced herein are trademarks of Hewlett-Packard Company in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iEYEARECAAYFAlRAJ/cACgkQ4B86/C0qfVnY5wCbB6BuI/1jNKooORagufjsKfmo 5ikAnjlwLbaE1YWaqIqBsmMXPERqtuB7 =ceqx -----END PGP SIGNATURE-----

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

network

TYPE

Design Error

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

HP

SOURCES

LAST UPDATE DATE

2024-11-20T21:55:13.242000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE