Security Bulletin: A vulnerability in the Firefox component of the Synthetic Playback agent affects IBM Performance Management products.

Summary

Multiple browsers could allow a remote attacker to obtain sensitive information, caused by the failure to consider the role of the TCP congestion window in providing information about content length by the HTTPS protocol or by the HTTP/2 protocol. By visiting a Web site owned by a malicious party, an attacker could exploit this vulnerability to obtain e-mail addresses, social security numbers, and other small pieces of encrypted data. Note: This vulnerability is also known as a HEIST attack.

Vulnerability Details

CVEID: CVE-2016-7152**
DESCRIPTION:** Multiple browsers could allow a remote attacker to obtain sensitive information, caused by the failure to consider the role of the TCP congestion window in providing information about content length by the HTTPS protocol. By visiting a Web site owned by a malicious party, an attacker could exploit this vulnerability to obtain e-mail addresses, social security numbers, and other small pieces of encrypted data. Note: This vulnerability is also known as a HEIST attack.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116624 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:N/A:N)

CVEID: CVE-2016-7153**
DESCRIPTION:** Multiple browsers could allow a remote attacker to obtain sensitive information, caused by the failure to consider the role of the TCP congestion window in providing information about content length by the HTTP/2 protocol. By visiting a Web site owned by a malicious party, an attacker could exploit this vulnerability to obtain e-mail addresses, social security numbers, and other small pieces of encrypted data. Note: This vulnerability is also known as a HEIST attack.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116623 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:N/A:N)

Affected Products and Versions

IBM Application Performance Management 8.1.3

IBM Application Performance Management Advanced 8.1.3

IBM Cloud Application Performance Management

Remediation/Fixes

Product

| Product
VRMF| Remediation
—|—|—
IBM Application Performance Management

IBM Application Performance Management Advanced

|

8.1.3

| If you use the Synthetic Playback agent, the vulnerabilities can be remediated by applying the Synthetic Playback agent 8.1.3.0-IBM-IPM-SYNTHETIC-PLAYBACK-AGENT-IF0005 patch to all systems where this agent is installed:
http://www.ibm.com/support/docview.wss?&uid=isg400003153
IBM Cloud Application Performance Management| _ N/A _
_ _| If you use the Synthetic Playback agent, the vulnerabilities can be remediated by applying the Synthetic Playback agent 8.1.3.1.0-IBM-IPM-SYNTHETIC-PLAYBACK-AGENT-IF0001 patch to all systems where this agent is installed:
http://dbluewas1.pok.ibm.com/support/docview.wss?&uid=isg400001500

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

April 5, 2017 Original copy published.

*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.

[{“Product”:{“code”:“SSVJUL”,“label”:“IBM Application Performance Management”},“Business Unit”:{“code”:“BU053”,“label”:“Cloud & Data Platform”},“Component”:“–”,“Platform”:[{“code”:“PF016”,“label”:“Linux”}],“Version”:“8.1.3”,“Edition”:“”,“Line of Business”:{“code”:“LOB45”,“label”:“Automation”}}]