qtpass generates possibly predictable and enumerable passwords
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
qtpass (Ubuntu) |
Fix Released
|
Undecided
|
Philip Rinn |
Bug Description
Description
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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-cryptograph
References
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http://
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CVE References
description: | updated |
description: | updated |
Hi,
QtPass uses `pwgen` to generate passwords by default. This means, if you didn't change the configuration to use the built-in password generator your passwords are safe. If you used the built-in password generator, change all passwords you generated with QtPass.
So, the number of affected people using the Ubuntu/Debian version should be rather low. Nonetheless there are fixed version available in bionic and I prepared a fix for qtpass 1.1.6 (the version in artful) which Ubuntu could copy from Debian stable- proposed- updates.
You should point the Ubuntu security team to the fixed version for artful (1.1.6-1+deb9u1) and ask them to copy it from Debian s-p-u.
Hope that helps
Philip