Public bug reported: Description =========== It was discovered that QtPass before 1.2.1, when using the built-in password generator, generates possibly predictable and enumerable passwords. This only applies to the QtPass GUI. The generator used libc's random(), seeded with srand(msecs), where msecs is not the msecs since 1970 (not that that'd be secure anyway), but rather the msecs since the last second. This means there are only 1000 different sequences of generated passwords.
The problem has been fixed upstream in version 1.2.1. (planned to be shipped with ubuntu 18.04) Impact ====== Passwords generated using QtPass can potentially be recovered by an attacker due to the use of a non-cryptographically secure random number generator with a predictable seed. It is recommend to change all passwords created by QtPass. References ========== http://www.openwall.com/lists/oss-security/2018/01/05/5 https://lists.zx2c4.com/pipermail/password-store/2018-January/003165.html https://github.com/IJHack/QtPass/issues/338 https://github.com/IJHack/QtPass/commit/e7bd0651335e1bf4f01512d1555fe0b960ff1787 https://security.archlinux.org/CVE-2017-18021 ** Affects: qtpass (Ubuntu) Importance: Undecided Status: New ** Description changed: - Description - =========== - It was discovered that QtPass before 1.2.1, when using the built-in password generator, generates possibly predictable and enumerable passwords. This only applies to the QtPass GUI. The generator used libc's random(), seeded with srand(msecs), where msecs is not the msecs since 1970 (not that that'd be secure anyway), but rather the msecs since the last second. This means there are only 1000 different sequences of generated passwords. + Description + =========== + It was discovered that QtPass before 1.2.1, when using the built-in password generator, generates possibly predictable and enumerable passwords. This only applies to the QtPass GUI. The generator used libc's random(), seeded with srand(msecs), where msecs is not the msecs since 1970 (not that that'd be secure anyway), but rather the msecs since the last second. This means there are only 1000 different sequences of generated passwords. The problem has been fixed upstream in version 1.2.1. (planned to be shipped with ubuntu 18.04) - Impact - ====== - Passwords generated using QtPass can potentially be recovered by an attacker due to the use of a non-cryptographically secure random number generator with a predictable seed. It is recommend to change all passwords created by QtPass. + Impact + ====== + Passwords generated using QtPass can potentially be recovered by an attacker due to the use of a non-cryptographically secure random number generator with a predictable seed. It is recommend to change all passwords created by QtPass. - References - ========== - http://www.openwall.com/lists/oss-security/2018/01/05/5 https://lists.zx2c4.com/pipermail/password-store/2018-January/003165.html - https://github.com/IJHack/QtPass/issues/338 https://github.com/IJHack/QtPass/commit/e7bd0651335e1bf4f01512d1555fe0b960ff1787 https://security.archlinux.org/CVE-2017-18021 + References + ========== + http://www.openwall.com/lists/oss-security/2018/01/05/5 + https://lists.zx2c4.com/pipermail/password-store/2018-January/003165.html + https://github.com/IJHack/QtPass/issues/338 https://github.com/IJHack/QtPass/commit/e7bd0651335e1bf4f01512d1555fe0b960ff1787 + https://security.archlinux.org/CVE-2017-18021 ** Description changed: Description =========== It was discovered that QtPass before 1.2.1, when using the built-in password generator, generates possibly predictable and enumerable passwords. This only applies to the QtPass GUI. The generator used libc's random(), seeded with srand(msecs), where msecs is not the msecs since 1970 (not that that'd be secure anyway), but rather the msecs since the last second. This means there are only 1000 different sequences of generated passwords. The problem has been fixed upstream in version 1.2.1. (planned to be shipped with ubuntu 18.04) Impact ====== Passwords generated using QtPass can potentially be recovered by an attacker due to the use of a non-cryptographically secure random number generator with a predictable seed. It is recommend to change all passwords created by QtPass. References ========== - http://www.openwall.com/lists/oss-security/2018/01/05/5 + http://www.openwall.com/lists/oss-security/2018/01/05/5 https://lists.zx2c4.com/pipermail/password-store/2018-January/003165.html - https://github.com/IJHack/QtPass/issues/338 https://github.com/IJHack/QtPass/commit/e7bd0651335e1bf4f01512d1555fe0b960ff1787 + https://github.com/IJHack/QtPass/issues/338 + https://github.com/IJHack/QtPass/commit/e7bd0651335e1bf4f01512d1555fe0b960ff1787 https://security.archlinux.org/CVE-2017-18021 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1747954 Title: qtpass generates possibly predictable and enumerable passwords To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtpass/+bug/1747954/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
