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Gentoo: GLSA-200812-09 Normal: OpenSC Insufficient PIN Protection

Smart cards formatted using OpenSC do not sufficiently protect the PIN, allowing attackers to reset it.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200812-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: OpenSC: Insufficient protection of smart card PIN Date: December 10, 2008 Bugs: #233543 ID: 200812-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Smart cards formatted using OpenSC do not sufficiently protect the PIN, allowing attackers to reset it. Background ========= OpenSC is a smart card application that allows reading and writing via PKCS#11. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/opensc < 0.11.6 > = 0.11.6 Description ========== Chaskiel M Grundman reported that OpenSC uses weak permissions (ADMIN file control information of 00) for the 5015 directory on smart cards and USB crypto tokens running Siemens CardOS M4. Impact ===== A physically proximate attacker can exploit this vulnerability to change the PIN on a smart card and use it for authentication, leading to privilege escalation. Workaround ========= There is no known workaround at this time. Resolution ========= All OpenSC users should upgrade to the latest version, and then check and update their smart cards: # emerge --sync # emerge --ask --oneshot --verbose "> =dev-libs/opensc-0.11.6" # pkcs15-tool --test-update # pkcs15-tool --test-update --update References ========= [ 1 ] CVE-2008-2235 https://www.cve.org/CVERecord?id=CVE-2008-2235 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200812-09 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5/ . The recent Gentoo Linux Security Update highlights vulnerabilities in OpenSC related to weak smart card PIN safeguarding, which may result in security breaches.. Smart Card, OpenSC, PIN Protection, Authentication, Security Advisory. . LinuxSecurity.com Team

Dec 10, 2008 Gentoo