Red Hat Bugzilla – Bug 982411
GDM Exposes User Passwd Entry
Last modified: 2015-02-17 10:59:36 EST
When screen reader is checked for GDM accessibility, keystrokes entering the user's password are echoed to the TTS system. This allows anyone within earshot to hear the passwd spelled out, unless the user proactively does something to muffle or silence speech during passwd entry--and that's not necessarily easy to do for most users. As a general practice, screen readers have long since learned to squelch passwd entries, whether during login (Windows, Mac), Linux console (Speakup), or in user agents such as browsers accessing remote, password protected sites. Since GDM wants to function as its own screen reader, it needs to handle this security breach appropriately.Description of problem:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Launch the desktop and select screen reader from the accessibility dropdown.
Restart and make sure speech feedback is enabled.
Select your user
Start typing your password and listen to the TTS echo it.
Password is echoed character by character.
Each keystroke during password entry should echo a nonspecific string to TTS such as "asterisk," or "dot," or some such. The actual char doesn't matter--only that there's one per typed keystroke.
The good news is that the problem with the password being exposed in the talking login was fixed -- while I *had* the talking login -- in Fedora 20. The bad news is that the talking login itself disappeared when I did an update on February 17 or 18. I did another update last night (Feb. 27) and the talking login is still gone. I'm not even remotely an expert on what to look for, but I note that last week I did not see anything in yum.log for that update indicating an update to gdm.
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