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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== 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 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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. - --------------------------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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