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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2615 Moderate: Red Hat Single Sign-On security update 19 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Red Hat Single Sign-On Publisher: Red Hat Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Cross-site Request Forgery -- Remote with User Interaction Cross-site Scripting -- Remote with User Interaction Access Confidential Data -- Remote with User Interaction Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-12197 CVE-2017-12160 CVE-2017-12159 CVE-2017-12158 Original Bulletin: https://access.redhat.com/errata/RHSA-2017:2906 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: Red Hat Single Sign-On security update Advisory ID: RHSA-2017:2906-01 Product: Red Hat Single Sign-On Advisory URL: https://access.redhat.com/errata/RHSA-2017:2906 Issue date: 2017-10-17 CVE Names: CVE-2017-12158 CVE-2017-12159 CVE-2017-12160 CVE-2017-12197 ===================================================================== 1. Summary: Red Hat Single Sign-On 7.1.3 is now available for download from the Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Description: Red Hat Single Sign-On 7.1 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. The Node.js adapter provides a simple module for authentication and authorization in Node.js applications. This release of Red Hat Single Sign-On 7.1.3 serves as a replacement for Red Hat Single Sign-On 7.1.2, and includes several bug fixes and enhancements. For further information, refer to the Release Notes linked to in the References section. Security Fix(es): * It was found that keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server. (CVE-2017-12158) * It was found that the cookie used for CSRF prevention in Keycloak was not unique to each session. An attacker could use this flaw to gain access to an authenticated user session, leading to possible information disclosure or further attacks. (CVE-2017-12159) * It was found that libpam4j did not properly validate user accounts when authenticating. A user with a valid password for a disabled account would be able to bypass security restrictions and possibly access sensitive information. (CVE-2017-12197) * It was found that Keycloak oauth would permit an authenticated resource to obtain an access/refresh token pair from the authentication server, permitting indefinite usage in the case of permission revocation. An attacker on an already compromised resource could use this flaw to grant himself continued permissions and possibly conduct further attacks. (CVE-2017-12160) Red Hat would like to thank Mykhailo Stadnyk (Playtech) for reporting CVE-2017-12158; Prapti Mittal for reporting CVE-2017-12159; and Bart Toersche (Simacan) for reporting CVE-2017-12160. The CVE-2017-12197 issue was discovered by Christian Heimes (Red Hat). 3. Solution: Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link (you must log in to download the update). 4. Bugs fixed (https://bugzilla.redhat.com/): 1484111 - CVE-2017-12159 keycloak: CSRF token fixation 1484154 - CVE-2017-12160 keycloak: resource privilege extension via access token in oauth 1489161 - CVE-2017-12158 keycloak: reflected XSS using HOST header 1503103 - CVE-2017-12197 libpam4j: Account check bypass 5. References: https://access.redhat.com/security/cve/CVE-2017-12158 https://access.redhat.com/security/cve/CVE-2017-12159 https://access.redhat.com/security/cve/CVE-2017-12160 https://access.redhat.com/security/cve/CVE-2017-12197 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso&downloadType=securityPatches&version=7.1 https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.1/html/release_notes/ 6. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFZ5l01XlSAg2UNWIIRAk8FAJ4iBL45/gOtgvK1k5npI9nwJ3rDBgCfSCEh s0Mld42NlpSDqUAw3LteQsw= =TnbG - -----END PGP SIGNATURE----- - --------------------------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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWefmMIx+lLeg9Ub1AQi/UxAAnZLPXN0t+8ll/KAk4D+7jWiJhmQnZ0q0 6hdB3kU8LvJcg5E3stufY134LC7DsdRmBCe1cglJxrrEueeRAInlrQAzoRv3AEWW YWlCdEFTOn0oW14rK+75GmR7i4ml0Aj0+J1AEqzFdnnpZoWU7kmQU41paS+RT4Wp Ii5XbmfwAe8zb52IpnBkiXgmY0+2WT/2HtGzU2IkzJWgn+47w3uTijGwYF3elY32 nI7gaLXxVF6MFOWjQ1p1QxJCNc26rM4SRVUWB78mLXz1os5THCykgLBGiB6fAMAK udq03o4T4V3vqzSFCydWQhyrmClZutltoZ7/boQ6J37GcdofqSsDN1vnyaZ13j5g phA23qhxZcAseVlsZQd158pf1jtTQTwh/5UBKMIO1AOfCbEF8GLEm6MlwQDNnId0 Vrb+bHVKPYdrJXacSvX4oA0lBexIFoRZ3W4ywfkRbR1h1YEinCsPn6Hy3oMP5J4Q StQmK6LkJNlXOzppk1Gl8gXSM2TTQjpfnOF1T6bYfFFQF3olvbL31D6K4i7JCiCi d7QV5ACkzSl3fgj7RJHTGN1KNpvPB/H+4yecN1dTRdIRTrDCccfbePZN/lO1kZ21 gd6Hpv5YjdTBgFX91MW8ElADRamBvjrAhnxAvP5ZdTaHt7qUch1LI89rhG2J04FI QvZFnM4K5Qc= =Vwj2 -----END PGP SIGNATURE-----