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AUSCERT External Security Bulletin Redistribution
ESB-2019.0054
Security Bulletin: Eclipse Jetty is vulnerable to HTTP request smuggling,
caused by improper handling of chunked transfer-encoding chunk size. IBM
Rational Service Tester is affected by this vulnerability.
4 January 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Rational Service Tester
Publisher: IBM
Operating System: Linux variants
Windows
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-12536 CVE-2017-7658 CVE-2017-7657
CVE-2017-7656
Reference: ESB-2018.3959
ESB-2018.3956
ESB-2018.2426
ESB-2018.1888
Original Bulletin:
https://www.ibm.com/support/docview.wss?uid=ibm10793737
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Security Bulletin: Eclipse Jetty is vulnerable to HTTP request smuggling,
caused by improper handling of chunked transfer-encoding chunk size. IBM
Rational Service Tester is affected by this vulnerability.
Security Bulletin
Document information
More support for:
Software version: 9
Operating system(s): Linux, Windows
Reference #: 0793737
Modified date: 03 January 2019
Summary
Description: Eclipse Jetty is vulnerable to HTTP request smuggling, caused by
improper handling of Chunked Transfer-Encoding chunk size. 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.
Vulnerability Details
CVE-ID: CVE-2017-7657
Description: Eclipse Jetty is vulnerable to HTTP request smuggling, caused by
improper handling of Chunked Transfer-Encoding chunk size. 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: https://exchange.xforce.ibmcloud.com/vulnerabilities/145521
for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVE-ID: CVE-2017-7656
Description: Eclipse Jetty is vulnerable to HTTP request smuggling, caused by a
flaw in the HTTP/1.x Parser. 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: https://exchange.xforce.ibmcloud.com/vulnerabilities/145520
for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVE-ID: CVE-2018-12536
Description: Eclipse Jetty could allow a remote attacker to obtain sensitive
information. An attacker could send a specially-crafted URL request to the
java.nio.file.InvalidPathException function using an invalid parameter to cause
an error message to be returned containing the full installation path. An
attacker could use this information to launch further attacks against the
affected system.
CVSS Base Score: 5.3
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/145523
for more information
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)
CVE-ID: CVE-2017-7658
Description: Eclipse Jetty is vulnerable to HTTP request smuggling, caused by a
flaw when handling more than one Content-Length 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: https://exchange.xforce.ibmcloud.com/vulnerabilities/145522
for more information
CVSS Environmental Score*: Undefined
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
Rational Service Tester version 9.
Remediation/Fixes
Upgrading to Rational Service Tester version 9.2.1.1 is recommended.
Workarounds and Mitigations
None.
Change History
03 January 2019 original version 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.
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