[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Full-disclosure] Multiple OS kernel insecure handling of stdio file descriptor
- To: eugeny gladkih <john@xxxxxxxxx>
- Subject: Re: [Full-disclosure] Multiple OS kernel insecure handling of stdio file descriptor
- From: Troy Bollinger <troy@xxxxxxxxxxxxxx>
- Date: Sat, 20 Jan 2007 15:18:14 -0600
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@xxxxxxxxxxxxxx>
Network Security Analyst
PGP keyid: 1024/0xB7783129
Troy's opinions are not IBM policy
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/