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ibmIBM6DF3814722A33BAC4382EFDB9DF33B5A2FFEA62B91E068C5925CD8FDD7EED52D
HistoryJun 16, 2018 - 9:25 p.m.

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

2018-06-1621:25:20
www.ibm.com
16

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

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 6.1.1| 7.0.0-TIV-TDI-LA0024
TDI 7.0| 7.0.0-TIV-TDI-LA0024
TDI 7.1| 7.1.1-TIV-TDI-LA0027
TDI 7.1.1| 7.1.1-TIV-TDI-LA0027
SDI 7.2| 7.2.0-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.

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

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