[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <20070120211814.GA23240@goliath.austin.ibm.com>
Date: Sat, 20 Jan 2007 15:18:14 -0600
From: Troy Bollinger <troy@...tin.ibm.com>
To: eugeny gladkih <john@...eb.com>
Cc: Shiva Persaud <shivapd@...tin.ibm.com>,
full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: Re: [Full-disclosure] Multiple OS kernel insecure handling of stdio file descriptor
On Sat, Jan 20, 2007 at 08:43:33PM +0300, eugeny gladkih wrote:
> well, but what is used for stdout if it's closed in the parent
> process just before fork(2) call?!
If I recall correctly, setuid and setgid programs with closed stdin,
stdout or stderr will open /dev/null during exec.
This fix was added to AIX back in 1999 or so.
--
Troy Bollinger <troy@...tin.ibm.com>
Network Security Analyst
PGP keyid: 1024/0xB7783129
Troy's opinions are not IBM policy
Powered by blists - more mailing lists