Security Bulletin: Vulnerability in Apache Tomcat affects IBM Algo One - Core (CVE-2017-7674, CVE-2017-7675)

Summary

Apache Tomcat could provide weaker than expected security, caused by the failure to add an HTTP Vary header (CVE-2017-7674). Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by a flaw in the HTTP/2 implementation (CVE-2017-7675).

Vulnerability Details

CVEID: CVE-2017-7674**
DESCRIPTION:** Apache Tomcat could provide weaker than expected security, caused by the failure to add an HTTP Vary header indicating that the response varies depending on Origin by the CORS Filter. A remote attacker could exploit this vulnerability to conduct client and server side cache poisoning.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/130248 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-7675**
DESCRIPTION:** Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by a flaw in the HTTP/2 implementation. By using a specially-crafted URL, an attacker could exploit this vulnerability to bypass security restraints.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/130247 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Upgrade to Tomcat version 7.0.79 or higher to remediate this vulnerability

Affected Products and Versions

Algo One Core 4.9.0, 5.0.0

Remediation/Fixes

Product Name

| iFix Name| Remediation/First Fix
—|—|—
Algo One Core| 490-232| http://www.ibm.com/support/fixcentral/swg/quickorder?parent=ibm~Information+Management&product=ibm/Information+Management/Algo+One&release=All&platform=All&function=fixId&fixids=4.9.0.0-Algo-One-AlgoCore-if0232:0&includeSupersedes=0&source=fc&login=true
Algo One Core| 500-378| http://www.ibm.com/support/fixcentral/swg/quickorder?parent=ibm~Information+Management&product=ibm/Information+Management/Algo+One&release=All&platform=All&function=fixId&fixids=5.0.0.0-Algo-One-AlgoCore-if0378:0&includeSupersedes=0&source=fc&login=true