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
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
The Logjam Attack on TLS connections using the Diffie-Hellman (DH) key exchange protocol affects IBM Security Access Manager for Web and IBM Tivoli Access Manager for e-business.
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)
IBM Tivoli Access Manager for e-business versions 6.0, 6.1, 6.1.1
IBM Security Access Manager for Web version 7.0 software
IBM Security Access Manager for Web version 7.0 appliance, all firmware versions
IBM Security Access Manager for Web version 8.0 appliance, all firmware versions
The table below provides links to patches for all affected IBM Security Access Manager for Web appliance versions. Follow the installation instructions in the README file included with the patch.
Product | VRMF | APAR | Remediation |
---|---|---|---|
IBM Security Access Manager for Web | |||
(appliance-based) | _7.0.0.0 - | ||
7.0.0.15_ | IV75309 | Apply the 7.0.0.16 interim fix:_ | |
_7.0.0-ISS-WGA-IF0016 | |||
IBM Security Access Manager for Web | _8.0.0.1 - | ||
8.0.1.3_ | IV75304 | Upgrade to the 8.0.1.3 interim fix: | |
8.0.1.3-ISS-WGA-IF0001 |
The table below describes the remediation for all affected IBM Tivoli Access Manager for e-business and IBM Security Access Manager for Web** **software versions.
Product | VRMF | APAR | Remediation |
---|---|---|---|
IBM Tivoli Access Manager for e-business | 6.0 | IV75107 | 1) Apply the 6.0.0.40 interim fix: |
6.0.0-ISS-TAM-IF0040 |
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.
_For __IBM Tivoli Access Manager 5.1, _IBM recommends upgrading to a fixed, supported release of the product.
CPE | Name | Operator | Version |
---|---|---|---|
tivoli access manager for e-business | eq | any |
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
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N