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Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect Security Directory Integrator

Security Bulletin


Summary

There are multiple vulnerabilities in IBM Runtime Environment Java Technology Edition, Version 5.0 , Version 6.0 and Version 7.0 that is used by Security Directory Integrator. Some of these issues were disclosed as part of the IBM Java SDK updates in April 2015.


This bulletin also addresses FREAK: Factoring Attack on RSA-EXPORT keys" SSL/TLS vulnerability RC4 Bar Mitzvah Attack for SSL/TLS vulnerability and the Logjam Attack on TLS connections using the Diffie-Hellman (DH) key exchange protocol .

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-2015-0488
DESCRIPTION:
An unspecified vulnerability related to the JSSE component could allow a remote attacker to cause a denial of service.
CVSS Base Score: 5
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/102336for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID:CVE-2015-0478
DESCRIPTION:
An unspecified vulnerability related to the JCE component could allow a remote attacker to obtain sensitive information.
CVSS Base Score: 4.3
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/102339for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVEID:CVE-2015-1916
DESCRIPTION:
Server applications which use the IBM Java Secure Socket Extension provider to accept SSL/TLS connections are vulnerable to a denial of service attack due to an unspecified vulnerability.
CVSS Base Score: 5
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/101995for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID:CVE-2015-2808
DESCRIPTION:
The RC4 algorithm, as used in the TLS protocol and SSL protocol, could allow a remote attacker to obtain sensitive information. An attacker could exploit this vulnerability to remotely expose account credentials without requiring an active man-in-the-middle session. Successful exploitation could allow an attacker to retrieve credit card data or other sensitive information. This vulnerability is commonly referred to as "Bar Mitzvah Attack".
CVSS Base Score: 5
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/101851for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVEID:CVE-2015-0138
DESCRIPTION:
A vulnerability in various IBM SSL/TLS implementations could allow a remote attacker to downgrade the security of certain SSL/TLS connections. An IBM SSL/TLS client implementation could accept the use of an RSA temporary key in a non-export RSA key exchange ciphersuite. This could allow a remote attacker using man-in-the-middle techniques to facilitate brute-force decryption of TLS/SSL traffic between vulnerable clients and servers. This vulnerability is also known as the FREAK attack.
CVSS Base Score: 4.3
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/100691for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

Affected Products and Versions


IBM Tivoli Directory Integrator 6.1.1
IBM Tivoli Directory Integrator 7.0.0
IBM Tivoli Directory Integrator 7.1.0
IBM Tivoli Directory Integrator 7.1.1
IBM Security Directory Integrator 7.2.0

Remediation/Fixes

Affected Products and Versions

Fix availability
TDI 6.1.17.0.0-TIV-TDI-LA0024
TDI 7.07.0.0-TIV-TDI-LA0024
TDI 7.17.1.1-TIV-TDI-LA0027
TDI 7.1.17.1.1-TIV-TDI-LA0027
SDI 7.27.2.0-ISS-SDI-LA0008


You should verify applying this configuration change does not cause any compatibility issues. If you change the default setting after applying the fix, you will expose yourself to the attack described above. IBM recommends that you review your entire environment to identify other areas where you have enabled the Diffie-Hellman key-exchange protocol used in TLS and take appropriate mitigation and remediation actions.

Workarounds and Mitigations

As the length of the server key size are increased, the amount of CPU required for full TLS/SSL handshake can significantly increase. Please carefully test and assess the impact to your CPU requirements to ensure sufficient CPU resources, otherwise the system availability may be impacted.

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

CVE-2015-4000 Reported to IBM by The WeakDH team at https://weakdh.org

Change History

03 July 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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Product Synonym

TDI SDI IDI

Document Information

Modified date:
16 June 2018

UID

swg21960567