16 December 2015
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.3150 Security Bulletin: Multiple vulnerabilities in IBM HTTP Server (IHS) affect IBM Security SiteProtector System (CVE-2015-1283, CVE-2015-3183 and CVE-2015-4947) 16 December 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Security SiteProtector System Publisher: IBM Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Remote with User Interaction Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2015-4947 CVE-2015-3183 CVE-2015-1283 Reference: ASB-2015.0103 ASB-2015.0086 ASB-2015.0073 ESB-2015.2761 ESB-2015.2673 ESB-2015.2643 ESB-2015.2622 ESB-2015.2569 ESB-2015.2567 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21972470 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Multiple vulnerabilities in IBM HTTP Server (IHS) affect IBM Security SiteProtector System (CVE-2015-1283, CVE-2015-3183 and CVE-2015-4947) Document information More support for: IBM Security SiteProtector System Software version: 3.0, 3.1.1 Operating system(s): Windows Reference #: 1972470 Modified date: 2015-12-15 Security Bulletin Summary There are multiple vulnerabilities in IBM HTTP Server (IHS) that is used by IBM Security SiteProtector System. Vulnerability Details CVEID: CVE-2015-1283 DESCRIPTION: Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716. CVSS Base Score: 6.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104964 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L) CVEID: CVE-2015-3183 DESCRIPTION: Apache HTTP Server is vulnerable to HTTP request smuggling, caused by a chunk header parsing flaw in the apr_brigade_flatten() function. By sending a specially-crafted request in a malformed chunked header to the Apache HTTP server, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks. CVSS Base Score: 6.1 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104844 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) CVEID: CVE-2015-4947 DESCRIPTION: IBM HTTP Server Administration Server could be vulnerable to a stack buffer overflow, caused by improper handling of user input. An authenticated remote attacker could overflow a buffer and execute arbitrary code on the system. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104912 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) Affected Products and Versions IBM Security SiteProtector System 3.0 and 3.1.1 Remediation/Fixes For SiteProtector 3.0 and 3.1.1: By default, SiteProtector's Update Server Component will automatically be updated with the package listed below. UpdateServer_3_1_1_5.pkg Alternatively, the package can be manually obtained from the IBM Security License Key and Download Center using the following URL: https://ibmss.flexnetoperations.com/service/ibms/login Workarounds and Mitigations None Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS v3 Guide On-line Calculator v3 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 15 December 2015: 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 firstname.lastname@example.org 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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