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Bug 1700680 - Update man page for pam_tty_audit
Summary: Update man page for pam_tty_audit
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pam
Version: 7.6
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Tomas Mraz
QA Contact: Dalibor Pospíšil
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-04-17 07:21 UTC by Mohammed Shakir Ali
Modified: 2020-03-31 19:10 UTC (History)
2 users (show)

Fixed In Version: pam-1.1.8-23.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1738265 (view as bug list)
Environment:
Last Closed: 2020-03-31 19:10:34 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:1005 0 None None None 2020-03-31 19:10:43 UTC

Description Mohammed Shakir Ali 2019-04-17 07:21:52 UTC
Description of problem:

One of our Customer recommends that the man page for pam_tty_audit be amended to warn readers of the section saying that "passwords are not logged", to something indicating that passwords will be logged regardless when passing through a jump host (bastion).

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. 
2.
3.

Actual results:

As per man pages, we notice following:


log_passwd
    Log keystrokes when ECHO mode is off but ICANON mode is active. This is the mode in which the tty is placed during password entry. By default, passwords are not logged.



Expected results:

Update man pages to reflect that password will be captured in an environment while trying to ssh through a "Jump Host".

Additional info:

We raised a Bugzilla#1684319 on this issue, and noticed that passwords are 
logged in when there is a jump host involved.

Comment 4 Miloslav Trmač 2019-04-17 21:03:40 UTC
This has nothing to do with bastion hosts specifically; _all_ of input to a ssh session, (or any interactive program like vim, FWIW), is logged.  Another way to view this is that only _local_ echo state matters, not state on some other machine.

(I don’t know how to word this clearly, just pointing out that the clarification should not overly focus on bastion hosts.)

Comment 7 Tomas Mraz 2019-07-26 14:39:18 UTC
What about this text?

      Please note that passwords in some circumstances may be logged by TTY auditing
      even if the <option>log_passwd</option> is not used. For example all input to
      a ssh session will be logged - even if there is a password being typed into 
      some software running at the remote host because only the local TTY state 
      affects the local TTY auditing.

Comment 8 Tomas Mraz 2019-07-26 14:40:06 UTC
Mirek, is the text above OK?

Comment 9 Miloslav Trmač 2019-07-26 15:01:53 UTC
Works for me.

Comment 13 errata-xmlrpc 2020-03-31 19:10:34 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1005


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