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, 18 Jan 2007 21:30:49 +0300
To: XFOCUS Security Team <>
Subject: Re: Multiple OS kernel  insecure handling of stdio file descriptor

Dear XFOCUS Security Team,

 A  more  complicated  variant  of  this  vulnerability  (exhausting all
 available  descriptors  and closing standard one) was reported by Joost
 Pol  for  BSD  systems. It's very funny to see commercial Unix variants
 were not checked against it and simplest variant of this attack was not
 fixed for 5 years.


--Thursday, January 18, 2007, 5:21:52 PM, you wrote to

XST> The affected OSes allows local users to write to or read from restricted
XST> files by closing the file descriptors 0 (standard input), 1 (standard
XST> output), or 2 (standard error), which may then be reused by a called
XST> setuid process that intended to perform I/O on normal files. the attack
XST> which exploit this vulnerability possibly get root right.


Powered by blists - more mailing lists