[#DSECRG-08-007] Digital Security Research Group [DSecRG] Advisory


Application:                    OpenBSD BGPD daemon
Versions Affected:              OpenBSD 4.1 
Vendor URL:                     http://openbsd.org
Bugs:                           XSS
Exploits:                       YES
Reported:                       10.10.2007
Vendor response:                10.10.2007
Date of Public Advisory:        31.01.2008
Authors:                        Alexandr Polyakov, Anton Karpov
                                Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)



Description
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OpenBSD BGPD daemon Web Interface has XSS  vulnerability


History
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http://www.mail-archive.com/misc@openbsd.org/msg49057.html




Details
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Linked XSS vulnerability found in script /cgi-bin/bgplg attacker can inject XSS in parameter cmd

Example:


http://[server]/cgi-bin/bgplg?cmd=shov+version<script>alert('DSecRG XSS')</script>


Fix Information
***************


Vendor  fix this flaw in cvs on 10.10.2007.                                                            

http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/bgplg/bgplg.c                                        


Updated version OpenBSD 4.2 which was released Nov 1, 2007 is NOT vulnerable.  


About
*****

Digital Security is leading IT security company in Russia, providing information security consulting, audit and penetration testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI DSS standards. Digital Security Research Group focuses on web application and database security problems with vulnerability reports, advisories and whitepapers posted regularly on our website.


Contact:        research [at] dsec [dot] ru
                http://www.dsec.ru (in Russian)





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 Digital Security Research Group                         mailto:research@dsec.ru