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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1889 IBM QRadar WinCollect Agent Does Not Verify TLS Syslog Certificate (CVE-2019-4264) 27 May 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM QRadar SIEM Publisher: IBM Operating System: Linux variants Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-4264 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10885464 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM QRadar WinCollect Agent Does Not Verify TLS Syslog Certificate (CVE-2019-4264) PSIRT Document information More support for: IBM QRadar SIEM Software version: 7.2.8 Operating system(s): Linux Software edition: All Editions Reference #: 0885464 Modified date: 24 May 2019 Security Bulletin Summary 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 https://exchange.xforce.ibmcloud.com/vulnerabilities/160072 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 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) Remediation/Fixes WinCollect Agent 7.2.9 (32-bit) WinCollect Agent 7.2.9 (64-bit) Workarounds and Mitigations None Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. Reference Complete CVSS v3 Guide On-line Calculator v3 Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement 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. Disclaimer 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXOthoWaOgq3Tt24GAQhkihAAvFrVCfUvEPjWk0Bvav18p8E0knDpg8MI 32y1wSJErA+Regx3As+B/W88/GfvbEXnUv9+i0/ec2iuWxJuyoAXuxXEDMR69oKb hzbZvps8iOz0YaNctX1yU2k9eV8xpchDwX7BY7dhN/7BJSdjpzJ0iq+cXCNchqMO kXX34NxG4AAwyn3n+k6Kus6Mg/P4D794+eA2KFxDCZS8d/egrpSQiH5Bu682nFyl G9EkEL7801RoT+4/WsJGZD8RutVAFjbf0K1igC4JIExhpPd19n/P0PASUBIOA4zM RFfJTLX2guOQ5IxxD4x+ybNnxvGEs1Scc+qn+EGFEmaXwyZ9yHSk36yJRxoVDUzE AbGyjdnom0dSrs3/ZxGiMbhpnAGVzNwYDl73UKrA2IhmO8yCZYoTSXypxSLFZW0h iX+JxQxhjo/n/SCch7xChlryVvGxfWWmJn5UZ7w5QAtUygFEqJWyNCxkwryDU7Pt wbZDI4DJX7mN79IVYM2+1uARAuos4oNjPiRwqak5l8X97Yak6C/M6m1C+OSwXBCn eMDFrfzuzqB0TjL4Zz7P8SDx6/qmXnrq2KMlnHpsOoEW41KQFdgfC2rY7tq/0xbi nKEj8msg+L0qg09NJv4rO4wB5e6wAxoto/7++9Yxg9L3wAlDlTe6rBpnuB+VSuNZ cy5gqYVd2gk= =jFyG -----END PGP SIGNATURE-----