CVE-2020-1769: 
Linux Debian vulnerability analysis and mitigation

CVE-2020-1769 is a security vulnerability discovered in OTRS (Open-Source Ticket Request System) that affects the login screens in both agent and customer interfaces. The vulnerability was disclosed on March 27, 2020, and affects OTRS Community Edition versions 5.0.41 and prior, 6.0.26 and prior, and OTRS version 7.0.15 and prior versions (OTRS Advisory).

The vulnerability stems from the Username and Password fields using autocomplete functionality in the login screens, which could be considered a security issue. The vulnerability has been assigned a CVSS v3.1 base score of 3.5 (LOW) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N (OTRS Advisory).

The vulnerability could potentially lead to information disclosure through the browser's autocomplete feature, though the severity is considered low. The issue affects both agent and customer interface login screens, potentially exposing login credentials if exploited (OTRS Advisory).

The issue has been fixed in OTRS versions 7.0.16, 6.0.27, and 5.0.42. A new configuration setting 'DisableLoginAutocomplete' has been added that controls whether to disable autocompletion in the login forms by setting the autocomplete="off" attribute to the login input fields. However, some browsers may ignore this setting by default, though it can usually be changed in the browser configuration (Debian Advisory).