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> a.k.a. c0d3r/c0d3rZ/corelanc0d3r on various forums
> ____________________________________________________
>
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> This transmission is intended only for use by the intended recipient(s). If you are not an intended recipient you should not read, disclose, copy, circulate or in any other way use the information contained in this transmission. The information contained in this transmission may be confidential and/or privileged. If you have received this transmission in error, please notify the sender immediately and delete this transmission including any attachments.
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This transmission is intended only for use by the intended recipient(s). If you are not an intended recipient you should not read, disclose, copy, circulate or in any other way use the information contained in this transmission. The information contained in this transmission may be confidential and/or privileged. If you have received this transmission in error, please notify the sender immediately and delete this transmission including any attachments.
documentation for Microsoft Windows. Microsoft supports accessing help documents
directly via URLs by installing a protocol handler for the scheme "hcp",
a typical example is provided in the Windows XP Command Line Reference,
available at http://technet.microsoft.com/en-us/library/bb490918.aspx.
Using hcp:// URLs is intended to be safe, as when invoked via the registered
protocol handler the command line parameter /fromhcp is passed to the help
centre application. This flag switches the help centre into a restricted mode,
which will only permit a whitelisted set of help documents and parameters.
This design, introduced in SP2, is reasonably sound. A whitelist of trusted
> documentation for Microsoft Windows. Microsoft supports accessing help documents
> directly via URLs by installing a protocol handler for the scheme "hcp",
> a typical example is provided in the Windows XP Command Line Reference,
> available at http://technet.microsoft.com/en-us/library/bb490918.aspx.
>
> Using hcp:// URLs is intended to be safe, as when invoked via the registered
> protocol handler the command line parameter /fromhcp is passed to the help
> centre application. This flag switches the help centre into a restricted mode,
> which will only permit a whitelisted set of help documents and parameters.
>
> This design, introduced in SP2, is reasonably sound. A whitelist of trusted
documentation for Microsoft Windows. Microsoft supports accessing help documents
directly via URLs by installing a protocol handler for the scheme "hcp",
a typical example is provided in the Windows XP Command Line Reference,
available at http://technet.microsoft.com/en-us/library/bb490918.aspx.
Using hcp:// URLs is intended to be safe, as when invoked via the registered
protocol handler the command line parameter /fromhcp is passed to the help
centre application. This flag switches the help centre into a restricted mode,
which will only permit a whitelisted set of help documents and parameters.
This design, introduced in SP2, is reasonably sound. A whitelist of trusted
We wish to thank Michel Dubois for his cooperation in fixing the bugs we
reported in a timely manner.
This transmission is intended only for use by the intended recipient(s). If you are not an intended recipient you should not read, disclose, copy, circulate or in any other way use the information contained in this transmission. The information contained in this transmission may be confidential and/or privileged. If you have received this transmission in error, please notify the sender immediately and delete this transmission including any attachments.
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lilf
2010-04-17
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is intended only for the use of the intended recipient and may be confidential and/or privileged of
Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is
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Synth.Region.uiToRegionMap/lowerCaseNameMap, (11) the Introspector
class and a cache of BeanInfo, and (12) JAX-WS (CVE-2009-2475).
The Java Management Extensions (JMX) implementation does not
properly enforce OpenType checks, which allows context-dependent
attackers to bypass intended access restrictions by leveraging
finalizer resurrection to obtain a reference to a privileged object
(CVE-2009-2476).
A flaw in the Xerces2 as used in OpenJDK allows remote attackers to
cause denial of service via a malformed XML input (CVE-2009-2625).
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a.k.a. c0d3r/c0d3rZ/corelanc0d3r on various forums
____________________________________________________
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f.close
This transmission is intended only for use by the intended recipient(s). If you are not an intended recipient you should not read, disclose, copy, circulate or in any other way use the information contained in this transmission. The information contained in this transmission may be confidential and/or privileged. If you have received this transmission in error, please notify the sender immediately and delete this transmission including any attachments.
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Qingshan Li and Lufeng Li
2010-05-06
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is strictly prohibited, and may be unlawful.If you have received this communication in error,please
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your system. Thank you.
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http://www.mwrinfosecurity.com/publications/mwri_security-implications-of-windows-access-tokens_2008-04-14.pdf
http://sourceforge.net/projects/incognito
ABSTRACT
This whitepaper discusses the security exposures that can occur due to the manner in which access tokens are implemented in the Microsoft® Windows Operating System. A brief overview of the intended function, design and implementation of Windows access tokens is given, followed by a discussion of the relevant security consequences of their design. More specific technical details are then given on how the features of Windows access tokens can be used to perform powerful post-exploitation functions during penetration testing, along with a basic methodology for including an assessment of the vulnerabilities exposed through tokens in a standard penetration test. Discussion is also included about why many corporate environments (assessed during penetration tests conducted by MWR InfoSecurity) have been found to not be operating in a manner which limits the risk of such issues. Finally, best practice advice is given on how to defend against these attacks.
It must be noted that the security issues discussed in this white paper do not represent a flaw in the Microsoft® Windows Operating System but are an expected consequence based on the design and implementation of Windows access tokens. The important point is that many corporate environments do not account for these issues within their security strategy and, consequently, the controls in many of these environments are not sufficient to withstand the techniques discussed here.
Additionally, it is acknowledged that the security implications of Windows access tokens have been discussed before both in general terms and to different degrees of technical detail. This document is not intended to present such discussions as being fundamentally new; instead it is intended to collate some of the existing knowledge, introduce some new findings and to demonstrate why many years after the general principles discussed were highlighted, many corporate environments are still vulnerable to these issues.
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+44(0)208 401 0070
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http://www.networkworld.com/news/2008/011608-prize-for-zero-day-windows-
flaws.html
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