Security Bulletin
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
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 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)
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 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
Remediation/Fixes
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
Original Version Published: September 9, 2019
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
09 September 2019
UID
ibm11072744