linux-kernel - Re: [PATCH] Audit: Add TTY input auditing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 7 Jun 2007 15:32:04 -0700 (PDT)
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	Jan Engelhardt <jengelh@...putergmbh.de>,
	Miloslav Trmac <mitr@...hat.com>
Cc:	Steve Grubb <sgrubb@...hat.com>, dwmw2@...radead.org,
	linux-kernel@...r.kernel.org, Alan Cox <alan@...hat.com>,
	Alexander Viro <aviro@...hat.com>
Subject: Re: [PATCH] Audit: Add TTY input auditing


--- Jan Engelhardt <jengelh@...putergmbh.de> wrote:


> Someone please enlighten me why a regular keylogger² that captures
> both input and output could not do the same. (Auditing what one has done.)

1. shell aliases
   # innocuous -p 0 
2. shell variables
   # $INNOCUOUS -p 0
3. symlinks
   # ./innocuous -p 0

Yes, I know there are ways to prevent each of these "attacks",
but it's surprising how often simple textual changes are effective
in hiding behavior.


Casey Schaufler
casey@...aufler-ca.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/