>>>> ROOT Exploit in SAMBA <<<<<<

"A flaw has been detected in the Samba main smbd code which could allow 
an external attacker to remotely and anonymously gain Super User (root) 
privileges on a server running a Samba server. This flaw exists in 
previous versions of Samba from 2.0.x to 2.2.7a inclusive. This is a 
serious problem and all sites should either upgrade to Samba 2.2.8 
immediately or prohibit access to TCP ports 139 and 445."

Binaries are available from Samba for RedHat, and some other
distributions. So far as I can tell, the RedHat update mirrors
I normally use do not have 'official' RedHat RPMs yet.

Of course, if ports 139 and 445 are blocked in your firewall,
then the risk  is mostly limited to attacks from machines inside
your firewall. However, I know from my own scanning of exploited
machines which have run attacks against one of my servers,
many, many Samba users expose these ports to the Inet, and
more than a few don't realize that they are doing so.

An article in The Register
  [ ]*
reports that blackhat exploit code for this vuln already is
in the wild, but I didn't see any mention of this on the
Samba site. Here is the link to the release notes.


* The Register is moving servers; I can't get to their site
via the domain name, but the IP address works.
3/17/2003 8:33:43 PM
grc.techtalk.linux 3969 articles. 0 followers. Follow

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Ben wrote:

> Samba site. Here is the link to the release notes.

3/17/2003 8:37:49 PM

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