Advisory : Opera Window Object Suppressing Remote Denial of Service




Opera Window Object Suppressing Remote Denial of Service.

*Version Affected:*
Opera 9.52

*Severity:*
High

*Description:*
The opera browser is vulnerable to window object based denial of
service attack. The opera fails to sanitize a check when window.close()
function is called in number of dynamically generated events.. The
function is called in a suppressed manner and kills the parent window
directly by default which makes it vulnerable to denial of service attack.

This security issue is a result of design flaw in the browser.Scripts
must not
close windows that were not opened by script,if script specific code is
designed.
There must be a parent window confirmation check prior to close of window.

*Proof of Concept*
*http://www.secniche.org/opera952/index.html*

Links:

http://www.secniche.org/advisory.html
http://evilfingers.com/advisory/index.php

*Detection:*
SecNiche confirmed this vulnerability affects Opera on Microsoft
Windows XP SP2 platform.The versions tested are:

Opera 9.52

*Disclosure Timeline:*
Disclosed: 28 September 2008
Release Date. 28 September ,2008

*Vendor Response:*
Vulnerability reported to Opera. Bug ID 365663

*Credit:*
Aditya K Sood

*Disclaimer*
The information in the advisory is believed to be accurate at the time
of publishing
based on currently available information. Use of the information
constitutes acceptance
for use in an AS IS condition. There is no representation or warranties,
either express or
implied by or with respect to anything in this document, and shall not
be liable for a ny
implied warranties of merchantability or fitness for a particular
purpose or for any indirect
special or consequential damages.



Relevant Pages

  • Operas Security Model is Highly Vulnerable (GM#002-OP)
    ... Opera recently released a new version of its browser. ... The vulnerability is comprised of three different flaws ... The first flaw means that a window in one domain is able to execute ...
    (NT-Bugtraq)
  • [VulnWatch] Operas Security Model is Highly Vulnerable (GM#002-OP)
    ... Opera recently released a new version of its browser. ... The vulnerability is comprised of three different flaws ... The first flaw means that a window in one domain is able to execute ...
    (VulnWatch)
  • Operas Security Model is Highly Vulnerable (GM#002-OP)
    ... Opera recently released a new version of its browser. ... The vulnerability is comprised of three different flaws ... The first flaw means that a window in one domain is able to execute ...
    (Bugtraq)
  • Re: OT - Woodstocks in Venice - Part the Second
    ... spent a lot of time in less touristy neighborhoods ... opera. ... A Venetian matron, perhaps in her seventies, was ... | in every window - whirligigs, banners, flags, windsocks, all in colorful ...
    (rec.arts.mystery)
  • [EXPL] Opera JPEG Processing Heap Corruption Vulnerabilities
    ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... Opera JPEG Processing Heap Corruption Vulnerabilities ... - ntdll.RtlAllocateHeapDHT vulnerability ... 74E5D7E0 mov edi, eax ...
    (Securiteam)