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Security Bulletin: IBM QRadar WinCollect Agent Does Not Verify TLS Syslog Certificate (CVE-2019-4264)

Security Bulletin


When configured for TLS Syslog the Wincollect agent does not verify the authenticity or accuracy of the server certificate. Even when a certificate is specified within the WinCollect configuration it is ignored, and any certificate presented by the server is blindly accepted while negotiating TLS.

Vulnerability Details

CVEID: CVE-2019-4264
Description: IBM QRadar WinCollect could allow an attacker to obtain sensitive information by spoofing a trusted entity using man in the middle techniques due to not validating or incorrectly validating a certificate.
CVSS Base Score: 5.9
CVSS Temporal Score: See for the current score
CVSS Environmental Score: *Undefined

Affected Products and Versions

WinCollect Agent 7.1.2 - WinCollect Agent 7.2.8 Patch 2 (32-bit)
WinCollect Agent 7.1.2 - WinCollect Agent 7.2.8 Patch 2 (64-bit)

Workarounds and Mitigations


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The vulnerability was reported to IBM by Steven Thompson and Jack Bahbah

Change History

May 24th 2019: First Publish

*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


[{"Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"Edition":"All Editions","Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"7.2.8","Business Unit":{"code":"BU008","label":"Security"},"Line of Business":{"code":"LOB24","label":"Security Software"}}]

Document Information

Modified date:
24 May 2019