Security Bulletin
Summary
Netty is vulnerable to HTTP request smuggling, caused by a flaw when handling unusual whitespaces before the colon in HTTP headers. By sending a specially-crafted request, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks. IBM Performance Management has addressed the applicable CVE.
Vulnerability Details
CVEID: CVE-2019-16869
DESCRIPTION: Netty is vulnerable to HTTP request smuggling, caused by a flaw when handling unusual whitespaces before the colon in HTTP headers. By sending a specially-crafted request, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167672 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Cloud APM | 8.1.4 |
| IBM Cloud APM, Advanced Private | 8.1.4 |
| IBM Cloud APM, Base Private | 8.1.4 |
Remediation/Fixes
| IBM Cloud Application Performance Management, Base Private IBM Cloud Application Performance Management, Advanced Private | 8.1.4 |
The vulnerability can be remediated by applying the following 8.1.4.0-IBM-APM-SERVER-IF0010 or later server patch to the system where the Cloud APM server is installed: https://www.ibm.com/support/pages/node/6120993 The vulnerability can be remediated by applying the following 8.1.4.0-IBM-APM-GATEWAY-IF0008 or later Hybrid Gateway patch to the system where the Hybrid Gateway is installed: https://www.ibm.com/support/pages/node/6125031 |
|
IBM Cloud Application Performance Management
| N/A |
The vulnerability can be remediated by applying the following 8.1.4.0-IBM-APM-GATEWAY-IF0008 or later Hybrid Gateway patch to the system where the Hybrid Gateway is installed: https://www.ibm.com/support/pages/node/6125031 |
Workarounds and Mitigations
None
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References
Acknowledgement
Change History
08 Apr 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.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
14 April 2020
Initial Publish date:
08 April 2020
UID
ibm16173925