Remote DoS attack in Real Networks Real Server Vulnerability

[labs () USSRBACK COM (Ussr Labs)]

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Remote DoS attack in Real Networks Real Server Vulnerability

"with a 412 byte attack EVERY RealServer is vulnerable to this D.O.S
attack"

USSR Advisory Code:   USSR-2000038

Release Date:
April 20, 2000

Systems Affected:
Real Networks Real Server 7 (linux or Windows)
Real Networks Real Server Pro (linux or Windows)
Real Networks Real Server Intranet (linux or Windows)
Real Networks Real Server Plus (linux or Windows)
Real Networks Real Server Basic (linux or Windows)
Real Networks Real Server G2 1.0

THE PROBLEM

The Ussr Labs team has recently discovered a memory problem in the
RealServer 7 Server. What happens is, by preforming an attack with
specially-malformed information to port 7070 it will cause the
proccess containg the services to stop responding.

Binary or Source for this D.o.S:

http://www.ussrback.com/

The Exploit: It will take down the RealServer causing it to stop all
streaming media brodcasts, making it non-functional, (untill Reboot)

Vendor Status:
Uninformed of this security issue for the reason of previous reports
of Real Networks user privacy invasion.

Now comes to my mind this two pages:

http://news.cnet.com/news/0-1005-200-1426571.html
http://news.cnet.com/news/0-1005-200-1435099.html?tag=st.cn.1.

SPECIAL NOTE: That we take no responsibility for this code it is for
educational purposes only.

Vendor   Url: http://www.real.com
Program  Url:
http://www.realnetworks.com/products/basicserverplus/index.html?src=ho
me
Download Url:
http://proforma.real.com/rn/servers/eval/index.html?src=home,srvpl_020
400,srvntra

Related Links:

Underground Security Systems Research
http://www.ussrback.com

Greetings:
Eeye, Attrition, w00w00, beavuh, Rhino9, SecurityFocus.com, ADM, HNN,
Technotronic and Wiretrip.

Copyright (c) 1999-2000 Underground Security Systems Research.
Permission is hereby granted for the redistribution of this alert
electronically. It is not to be edited in any way without express
consent of Ussr. If you wish to reprint the whole or any part of this
alert in any other medium excluding electronic medium, please e-mail
labs () ussrback com for permission.

Disclaimer:
The information within this paper may change without notice. Use of
this information constitutes acceptance for use in an AS IS
condition. There are NO warranties with regard to this information.
In no event shall the author be liable for any damages whatsoever
arising out of or in connection with the use or spread of this
information. Any use of this information is at the user's own risk.

Feedback:
Please send suggestions, updates, and comments to:

Underground Security Systems Research
mail:labs () ussrback com
http://www.ussrback.com

u n d e r g r o u n d  s e c u r i t y  s y s t e m s  r e s e a r c
h
http://www.ussrback.com

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