[NT] Microsoft Windows DCERPC Authentication Denial of Service Vulnerability

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
- - promotion

The SecuriTeam alerts list - Free, Accurate, Independent.

Get your security news from a reliable source.
http://www.securiteam.com/mailinglist.html

- - - - - - - - -



Microsoft Windows DCERPC Authentication Denial of Service Vulnerability
------------------------------------------------------------------------


SUMMARY

A vulnerability allows remote attackers to crash systems with vulnerable
installations of the Microsoft Windows operating system. Authentication is
not required to exploit this vulnerability.

DETAILS

The specific flaw exists within the RPC runtime library rpcrt4.dll during
the parsing of RPC-level authentication messages. When parsing packets
with the authentication type of NTLMSSP and the authentication level of
PACKET, an invalid memory dereference can occur if the verification
trailer signature is initialized to 0 as opposed to the standard NTLM
signature. Successful exploitation crashes the RPC service and
subsequently the entire operating system.

Vendor Response:
Microsoft has issued an update to correct this vulnerability. More details
can be found at:
<http://www.microsoft.com/technet/security/bulletin/ms07-058.mspx>
http://www.microsoft.com/technet/security/bulletin/ms07-058.mspx

Disclosure Timeline:
2007.02.05 - Vulnerability reported to vendor
2007.10.09 - Digital Vaccine released to TippingPoint customers
2007.10.10 - Coordinated public release of advisory

CVE Information:
<http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2228>
CVE-2007-2228


ADDITIONAL INFORMATION

The information has been provided by <mailto:zdi-disclosures@xxxxxxxx>
The Zero Day Initiative (ZDI).
The original article can be found at:
<http://www.zerodayinitiative.com/advisories/ZDI-07-055.html>
http://www.zerodayinitiative.com/advisories/ZDI-07-055.html



========================================


This bulletin is sent to members of the SecuriTeam mailing list.
To unsubscribe from the list, send mail with an empty subject line and body to: list-unsubscribe@xxxxxxxxxxxxxx
In order to subscribe to the mailing list, simply forward this email to: list-subscribe@xxxxxxxxxxxxxx


====================
====================

DISCLAIMER:
The information in this bulletin is provided "AS IS" without warranty of any kind.
In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.

Relevant Pages

  • [NEWS] Openfire Jabber-Server Multiple 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 ... filter which is responsible for authentication could be completely ... SQL injection vulnerability. ... Since the vendor didn't release a patch within the last 6 months it is ...
    (Securiteam)
  • [UNIX] Trend Micro VirusWall Buffer Overflow in VSAPI Library
    ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... buffer overflow vulnerability in VSAPI library allows arbitrary code ... is called "vscan" which is set suid root by default. ... permissions and thus granted all local users the privilege to execute the ...
    (Securiteam)
  • [UNIX] SCO Multiple Local Buffer Overflow
    ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... Local exploitation of a buffer overflow vulnerability in the ppp binary, ... allows attackers to gain root privileges. ...
    (Securiteam)
  • [NT] Microsoft Word 6.0/95 Document Converter Buffer Overflow (MS04-041)
    ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... WordPad is "a word processing application that uses the MFC rich edit ... Remote exploitation of a buffer overflow vulnerability in Microsoft ... Microsoft Word format files into the Rich Text Format natively handled by ...
    (Securiteam)
  • [NT] CA Multiple Product DBASVR RPC Server Multiple Buffer Overflow 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 ... This vulnerability allows remote attackers to execute arbitrary code on ... Backup, Enterprise Backup, Server Protection Suite and Business Protection ...
    (Securiteam)