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AUSCERT External Security Bulletin Redistribution
ESB-2014.1738
Vulnerabilities in Bash affect Proventia Network Enterprise Scanner
(CVE-2014-6271, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187,
CVE-2014-6277, CVE-2014-6278)
1 October 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Proventia Network Enterprise Scanner
Publisher: IBM
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-7187 CVE-2014-7186 CVE-2014-7169
CVE-2014-6278 CVE-2014-6277 CVE-2014-6271
Reference: ASB-2014.0111
ASB-2014.0110
ESB-2014.1733
ESB-2014.1730
ESB-2014.1724
ESB-2014.1723
ESB-2014.1709
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21685914
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Security Bulletin: Vulnerabilities in Bash affect Proventia Network Enterprise
Scanner (CVE-2014-6271, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187,
CVE-2014-6277, CVE-2014-6278)
Document information
More support for:
Proventia Network Enterprise Scanner
Software version:
2.3
Operating system(s):
Firmware
Reference #:
1685914
Modified date:
2014-09-30
Security Bulletin
Summary
Six Bash vulnerabilities were disclosed in September 2014. This bulletin
addresses the vulnerabilities that have been referred to as Bash Bug or
Shellshock and two memory corruption vulnerabilities. Bash is used by IBM
Proventia Network Enterprise Scanner.
Vulnerability Details
CVE-ID: CVE-2014-6271
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary
commands on the system, caused by an error when evaluating specially-crafted
environment variables passed to it by the bash functionality. An attacker
could exploit this vulnerability to write to files and execute arbitrary
commands on the system.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96153 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVE-ID: CVE-2014-7169
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary
commands on the system, caused by an incomplete fix related to malformed
function definitions in the values of environment variables. An attacker could
exploit this vulnerability using attack vectors involving the ForceCommand
feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP
Server to write to files and execute arbitrary commands on the system.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96209 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVE-ID: CVE-2014-7186
DESCRIPTION: GNU Bash could allow a local attacker to execute arbitrary code
on the system, caused by an out-of-bounds memory access while handling
redir_stack. An attacker could exploit this vulnerability to execute arbitrary
code on the system or cause a denial of service.
CVSS Base Score: 4.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96237 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)
CVE-ID: CVE-2014-7187
DESCRIPTION: GNU Bash could allow a local attacker to execute arbitrary code
on the system, caused by an off-by-one-error when handling deeply nested flow
control constructs. An attacker could exploit this vulnerability to execute
arbitrary code on the system or cause a denial of service.
CVSS Base Score: 4.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96238 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)
CVE-ID: CVE-2014-6277
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary code
on the system, caused by an incomplete fix related to the failure to properly
parse function definitions in the values of environment variables. An attacker
could exploit this vulnerability using attack vectors involving the
ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the
Apache HTTP Server to execute arbitrary code on the system or cause a denial
of service.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96686 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVE-ID: CVE-2014-6278
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary code
on the system, caused by an incomplete fix related to the parsing of user
scripts. An attacker could exploit this vulnerability to execute arbitrary
code on the system or cause a denial of service.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96687 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Affected Products and Versions
IBM Proventia Network Enterprise Scanner 2.3
Remediation/Fixes
Product VRMF APAR Remediation/First Fix
IBM Proventia Network 2.3.0.0 IV65435 2.3.0.2-ISS-ES-IF002
Enterprise Scanner
IBM recommends that you review your entire environment to identify vulnerable
releases of Bash including your Operating Systems and take appropriate
mitigation and remediation actions. Please contact your Operating System
provider for more information.
Workarounds and Mitigations
None
References
Complete CVSS Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
30 September 2014: Original Version Published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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