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Security Bulletin: IBM Content Navigator is susceptible to a sensitive data exposure.

Security Bulletin


IBM Content Navigator has addressed the following vulnerability.

Vulnerability Details

CVEID:   CVE-2020-4687
DESCRIPTION:   IBM Content Navigator could allow an authenticated user to view cached content of another user that they should not have access to.
CVSS Base score: 4.3
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Content Navigator3.0CD


ProductVMRFRemediation / First Fix
IBM Content Navigator      3.0 Continuous DeliveryICN 3.0.7 iFix 5 and above, ICN 3.0.8 iFix 1 and above.

Workarounds and Mitigations

Add parameter 'docParamsToIgnore' to the server configuration and put a value in it that is not a standard URL queryParameter (e.g 'mitigateCacheFlaw') This will prevent the default value of security_token being used and therefore make the document caching user session specific again.

Limitations of mitigation: it will only work where docIdPrototype is ${originalDocURL} and not where it has been set to a subset of the URL parameters passed to enable ICN clearing of ViewONE cache for non-versioned documents (as in current versions of ICN).

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Change History

19 Aug 2020: Initial Publication

*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.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location


[{"Business Unit":{"code":"BU004","label":"Hybrid Cloud"},"Product":{"code":"SSEUEX","label":"Content Navigator"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"3.0.7, 3.0.8","Edition":""}]

Document Information

Modified date:
19 August 2020