[UNIX] Samba "send_mailslot()" Buffer Overflow Vulnerability
- From: SecuriTeam <support@xxxxxxxxxxxxxx>
- Date: 11 Dec 2007 14:46:20 +0200
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Samba "send_mailslot()" Buffer Overflow Vulnerability
<http://www.samba.org/> Samba is "an Open Source/Free Software suite that
has, since 1992, provided file and print services to all manner of
SMB/CIFS clients, including the numerous versions of Microsoft Windows
operating systems. Samba is freely available under the GNU General Public
License". Secunia Research has discovered a vulnerability in Samba, which
can be exploited by malicious people to compromise a vulnerable system.
* Samba version 3.0.27a
The vulnerability is caused due to a boundary error within the
"send_mailslot()" function. This can be exploited to cause a stack-based
buffer overflow with zero bytes via a specially crafted "SAMLOGON" domain
logon packet containing a username string placed at an odd offset followed
by an overly long GETDC string.
Successful exploitation allows execution of arbitrary code, but requires
that the "domain logons" option is enabled.
22/11/2007 - Vendor notified.
22/11/2007 - vendor-sec notified.
23/11/2007 - Vendor response.
10/12/2007 - Public disclosure.
The information has been provided by Secunia Research.
The original article can be found at:
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