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AUSCERT External Security Bulletin Redistribution
ESB-2015.2445
Security Bulletin: Vulnerabilities in OpenSSL including Logjam affect the
Cordova platform packaged with Rational Application Developer affecting
Rational Developer for i and Rational Developer for AIX and Linux
18 September 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Rational Developer for i
IBM Rational Developer for AIX and Linux
Publisher: IBM
Operating System: Linux variants
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-4000 CVE-2015-1792 CVE-2015-1791
CVE-2015-1790 CVE-2015-1789 CVE-2015-1788
CVE-2014-8176
Reference: ASB-2015.0081
ASB-2015.0070
ASB-2015.0066
ASB-2015.0065
ESB-2015.2441
ESB-2015.2422
ESB-2015.2403
ESB-2015.2395
ESB-2015.2338
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21966873
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Security Bulletin: Vulnerabilities in OpenSSL including Logjam affect the
Cordova platform packaged with Rational Application Developer affecting
Rational Developer for i and Rational Developer for AIX and Linux
Document information
More support for:
Rational Developer for i
General Information
Software version:
9.1, 9.1.1, 9.1.1.1
Operating system(s):
Linux, Windows
Software edition:
Modernization Tools- EGL Edition, Modernization Tools- Java Edition
Reference #:
1966873
Modified date:
2015-09-17
Security Bulletin
Summary
Portions of IBM Rational Application Developer for WebSphere Software are
shipped as a component of Rational Developer for i (RPG and COBOL +
Modernization Tools, Java and EGL editions), and Rational Developer for AIX
and Linux.
OpenSSL vulnerabilities were disclosed on June 11, 2015 by the OpenSSL
Project. This includes Logjam Attack on TLS connections using the
Diffie-Hellman (DH) key exchange protocol (CVE-2015-4000). OpenSSL is used by
IBM SDK for Node.js for the Cordova tools in Rational Application Developer
for WebSphere Software. Rational Application Developer for WebSphere Software
has addressed the applicable CVEs.
Vulnerability Details
CVEID: CVE-2015-4000
DESCRIPTION: The TLS protocol could allow a remote attacker to obtain
sensitive information, caused by the failure to properly convey a DHE_EXPORT
ciphersuite choice. An attacker could exploit this vulnerability using
man-in-the-middle techniques to force a downgrade to 512-bit export-grade
cipher. Successful exploitation could allow an attacker to recover the session
key as well as modify the contents of the traffic. This vulnerability is
commonly referred to as "Logjam".
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/103294 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
CVEID: CVE-2014-8176
DESCRIPTION: OpenSSL could allow a remote authenticated attacker to execute
arbitrary code on the system, caused by an invalid free error when application
data between the ChangeCipherSpec and Finished messages is received by the
DTLS peer. An attacker could exploit this vulnerability to trigger a
segmentation fault or possibly corrupt memory and execute arbitrary code on
the system.
CVSS Base Score: 6.5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/#/vulnerabilities/103782 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:P/A:P)
CVEID: CVE-2015-1788
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an error
when processing an ECParameters structure over a specially crafted binary
polynomial field. A remote attacker could exploit this vulnerability to cause
the application to enter into an infinite loop.
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/#/vulnerabilities/103778 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVEID: CVE-2015-1789
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an
out-of-bounds read in X509_cmp_time. An attacker could exploit this
vulnerability using a specially crafted certificate or CRL to trigger a
segmentation fault.
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/#/vulnerabilities/103779 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVEID: CVE-2015-1790
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the
improper handling of missing inner EncryptedContent by the PKCS#7 parsing
code. An attacker could exploit this vulnerability using specially crafted
ASN.1-encoded PKCS#7 blobs with missing content to trigger a NULL pointer
dereference.
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/#/vulnerabilities/103780 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVEID: CVE-2015-1791
DESCRIPTION: A double-free memory error in OpenSSL in the
ssl3_get_new_session_ticket() function has an unknown impact. By returning a
specially crafted NewSessionTicket message, an attacker could cause the client
to reuse a previous ticket resulting in a race condition.
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/#/vulnerabilities/103609 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)
CVEID: CVE-2015-1792
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an error
when verifying a signedData message. An attacker could exploit this
vulnerability using an unknown hash function OID to cause the application to
enter into an infinite loop.
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/#/vulnerabilities/103781 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Affected Products and Versions
Affected Product and Version(s) Product and Version shipped as a component
IBM Rational Developer for i v9.1, v9.1.1 and v9.1.1.1 RPG and COBOL Rational Application Developer 9.1, 9.1.1
+ Modernization Tools, Java Edition
IBM Rational Developer for i v9.1, v9.1.1 and v9.1.1.1, RPG and COBOL Rational Application Developer 9.1, 9.1.1
+ Modernization Tools, EGL Edition
IBM Rational Developer for AIX and Linux v9.1 and v9.1.1, Rational Application Developer 9.1, 9.1.1
AIX COBOL Edition
IBM Rational Developer for AIX and Linux v9.1 and v9.1.1, Rational Application Developer 9.1, 9.1.1
C/C++ Edition
Remediation/Fixes
Review the Remediation/Fixes section of Security Bulletin: Vulnerabilities in
OpenSSL including Logjam affect Rational Application Developer for WebSphere
Software (CVE-2015-1791, CVE-2015-1792, CVE-2014-8176, CVE-2015-1788,
CVE-2015-1789, CVE-2015-1790) for instructions on obtaining the fix for this
issue.
Workarounds and Mitigations
None
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References
Complete CVSS v2 Guide
On-line Calculator v2
OpenSSL Project vulnerability website
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
Reported to IBM by The WeakDH team at https://weakdh.org
Change History
* 17 Sept 2015: 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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