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AUSCERT External Security Bulletin Redistribution
ESB-2019.3475
Spectrum Protect Operations Center vulnerable to Logjam (CVE-2015-4000)
12 September 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Spectrum Protect
Publisher: IBM
Operating System: AIX
Linux variants
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-4000
Reference: ASB-2017.0219
ASB-2016.0074
ASB-2016.0043
ASB-2016.0004
ASB-2015.0103
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=ibm11073000
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Spectrum Protect Operations Center vulnerable to Logjam (CVE-2015-4000)
Document Information
More support for:
IBM Spectrum Protect
Component:
Operations Center
Software version:
8.1
Operating system(s):
AIX; Linux; Windows
Reference #:
1073000
Modified date:
10 September 2019
Security Bulletin
Summary
A port used by Operations Center is reported to be vulnerable to Logjam
(CVE-2015-4000).
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)
Affected Products and Versions
IBM Spectrum Protect Operations Center affected levels are 8.1.3 through 8.1.7.
Note that 7.1 is not affected.
Remediation/Fixes
+-----------------------+----------+-----------+-----------+---------------------------------------------------------------------------------+
|IBM Spectrum Protect |First | | | |
|Operations Center |Fixing |APAR |Platform |Link to Fix |
|Release |VRM Level | | | |
+-----------------------+----------+-----------+-----------+---------------------------------------------------------------------------------+
|8.1 |8.1.8 |IT30213 |AIX |https://www.ibm.com/support/docview.wssuid=ibm10888465 |
| | | |Linux | |
| | | |Windows | |
+-----------------------+----------+-----------+-----------+---------------------------------------------------------------------------------+
Workarounds and Mitigations
IBM Spectrum Protect Operations Center 8.1.3 through 8.1.7, can add the
following statements to the java security file (/opt/tivoli/tsm/jre/lib/
security/java.security) to eliminate exposure to this vulnerability:
jdk.certpath.disabledAlgorithms=MD2,MD5,SHA1 usage TLSServer TLSClient
SignedJAR, RSA keySize < 1024, DSA keySize < 1024, EC keySize < 256, DSS
jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, DH keySize < 2048, EC keySize
< 256, DSS, 3DES_EDE_CBC, DES, DESede, RC4, MD5, SHA1,
TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256,
TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA256,
TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_GCM_SHA384, anon, NULL,
GCM
jdk.tls.ephemeralDHKeySize=2048
jdk.tls.rejectClientInitiatedRenegotiation=true
Get Notified about Future Security Bulletins
References
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