Security Bulletin: Security Vulnerabilties exist in IBM Cognos Controller

Summary

Security Vulnerabilities exist in IBM Cognos Controller.

When performing security testing, you might encounter a “Missing Secure Attribute in Encrypted Session (SSL) Cookie” error message. IBM Cognos Controller versions 10.4.1, 10.4.0, 10.3.1 and 10.3.0, by default, do not have this setting enabled. If this attribute is not set, it may be possible to steal user and session information (cookies) that was sent during an encrypted session.

The Lucky 13 attack is a crystallographic timing attack against implementations of the Transport Layer Security (TLS) protocol that use the CBC mode of operation. An attacker could perform man in the middle attacks to successfully obtain plain text from the secure channel. IBM Cognos Controller versions 10.4.1 and 10.4.0 could be vulnerable to this attack.

Both vulnerabilities can be addressed by implementing the fix referenced below.

Vulnerability Details

The following vulnerability affects IBM Cognos Controller 10.4.1 and 10.4.0 only:

CVEID: CVE-2019-4175 DESCRIPTION: IBM Cognos Controller uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.
CVSS Base Score: 5.9
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/158880&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

The following vulnerability affects Cognos Controller 10.4.1, 10.4.0, 10.3.1 and 10.3.0:

CVEID: CVE-2019-4171 DESCRIPTION: IBM Cognos Controller does not set the secure attribute on authorization tokens or session cookies. This could allow an attacker to obtain sensitive information using man in the middle techniques.
CVSS Base Score: 3.7
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/158876&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

IBM Cognos Controller 10.4.1

IBM Cognos Controller 10.4.0

IBM Cognos Controller 10.3.1

IBM Cognos Controller 10.3.0

Remediation/Fixes

See Workarounds and Mitigations below

Workarounds and Mitigations

Please implement the fix referenced below:

IBM Cognos Controller 10.4.0.0 SF001

Please note: the same configuration steps apply to all applicable versions.