Symantec has released a new virus definitions update for Norton Antivirus.
PHP supports multipart/form-data POST requests (as described in RFC1867) known as POST fileuploads. Unfourtunately there are several flaws in the php_mime_split function that could be used by an attacker to execute arbitrary code. During our research we found out that not only PHP4 but also older versions from the PHP3 tree are vulnerable.
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An SMTP service installs by default as part of Windows 2000 server products and as part of the Internet Mail Connector (IMC) for Microsoft Exchange Server 5.5. (The IMC, also known as the Microsoft Exchange Internet Mail Service, provides access and message exchange to and from any system that uses SMTP). A vulnerability results in both services because of a flaw in the way they handle a valid response from the NTLM authentication layer of the underlying operating system.
By design, the Windows 2000 SMTP service and the
Exchange Server 5.5 IMC, upon receiving notification from the NTLM authentication layer that a user has been authenticated, should perform additional checks before granting the user access to the service. The vulnerability results because the affected services don't perform this additional checking correctly. In some cases, this could result in the SMTP service granting access to a user solely on the basis of their ability to successfully authenticate to the server.
An attacker who exploited the vulnerability could gain only user-level privileges on the SMTP service, thereby enabling the attacker to use the service but not to administer it. The most likely purpose in exploiting the vulnerability would be to perform mail relaying via the server.
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By design, the Windows 2000 SMTP service and the
Exchange Server 5.5 IMC, upon receiving notification from the NTLM authentication layer that a user has been authenticated, should perform additional checks before granting the user access to the service. The vulnerability results because the affected services don't perform this additional checking correctly. In some cases, this could result in the SMTP service granting access to a user solely on the basis of their ability to successfully authenticate to the server.
An attacker who exploited the vulnerability could gain only user-level privileges on the SMTP service, thereby enabling the attacker to use the service but not to administer it. The most likely purpose in exploiting the vulnerability would be to perform mail relaying via the server.
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An SMTP service installs by default as part of Windows 2000 server products. Exchange 2000, which can only be installed on Windows 2000, uses the native Windows 2000 SMTP service rather than providing its own. In addition, Windows 2000 and Windows XP workstation products provide an SMTP service that is not installed by default. All of these implementations contain a flaw that could enable denial of service attacks to be mounted against the service.
The flaw involves how the service handles a particular type of SMTP command used to transfer the data that constitutes an incoming mail. By sending a malformed version of this command, an attacker could cause the SMTP service to fail. This would have the effect of disrupting mail services on the affected system, but would not cause the operating system itself to fail.
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The flaw involves how the service handles a particular type of SMTP command used to transfer the data that constitutes an incoming mail. By sending a malformed version of this command, an attacker could cause the SMTP service to fail. This would have the effect of disrupting mail services on the affected system, but would not cause the operating system itself to fail.
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McAfee Virus definitions has been updated to version 4188
Symantec has released a new virus definitions update for Norton Antivirus.
Saw over MajorGeeks that a new beta of ZoneAlarm is out
MooSoft has released a new trojan definitions update for The Cleaner
Symantec has released a new virus definitions update for Norton Antivirus.
Symantec has released a new virus definitions update for Norton Antivirus.
By default, Commerce Server 2000 installs a .dll with an ISAPI filter that allows the server to provide extended functionality in response to events on the server. This filter, called AuthFilter, provides support for a variety of authentication methods. Commerce Server 2000 can also be configured to use other authentication methods.
A security vulnerability results because AuthFilter contains an unchecked buffer in a section of code that handles certain types of authentication requests. An attacker who provided authentication data that overran the buffer could cause the Commerce Server process to fail, or could run code in the security context of the Commerce Server process. The process runs with LocalSystem privileges, so exploiting the vulnerability would give the attacker complete control of the server.
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A security vulnerability results because AuthFilter contains an unchecked buffer in a section of code that handles certain types of authentication requests. An attacker who provided authentication data that overran the buffer could cause the Commerce Server process to fail, or could run code in the security context of the Commerce Server process. The process runs with LocalSystem privileges, so exploiting the vulnerability would give the attacker complete control of the server.
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Frames are used in Internet Explorer to provide for a fuller browsing experience. By design, scripts in the frame of one site or domain should be prohibited from accessing the content of frames in another site or domain. However, a flaw exists in how VBScript is handled in IE relating to validating cross-domain access. This flaw can allow scripts of one domain to access the contents of another domain in a frame.
A malicious user could exploit this vulnerability by using scripting to extract the contents of frames in other domains, then sending that content back to their web site. This would enable the attacker to view files on the user's local machine or capture the contents of third-party web sites the user visited after leaving the attacker's site. The latter scenario could, in the worst case, enable the attacker to learn personal information like user names, passwords, or credit card information.
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A malicious user could exploit this vulnerability by using scripting to extract the contents of frames in other domains, then sending that content back to their web site. This would enable the attacker to view files on the user's local machine or capture the contents of third-party web sites the user visited after leaving the attacker's site. The latter scenario could, in the worst case, enable the attacker to learn personal information like user names, passwords, or credit card information.
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Microsoft XML Core Services (MSXML) includes the XMLHTTP ActiveX control, which allows web pages rendering in the browser to send or receive XML data via HTTP operations such as POST, GET, and PUT. The control provides security measures designed to restrict web pages so they can only use the control to request data from remote data sources.
A flaw exists in how the XMLHTTP control applies IE security zone settings to a redirected data stream returned in response to a request for data from a web site. A vulnerability results because an attacker could seek to exploit this flaw and specify a data source that is on the user's local system. The attacker could then use this to return information from the local system to the attacker's web site.
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A flaw exists in how the XMLHTTP control applies IE security zone settings to a redirected data stream returned in response to a request for data from a web site. A vulnerability results because an attacker could seek to exploit this flaw and specify a data source that is on the user's local system. The attacker could then use this to return information from the local system to the attacker's web site.
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Symantec has released a new virus definitions update for Norton Antivirus. Thanks Bidz.
McAfee Virus definitions has been updated to version 4187
One of the features of Structured Query Language (SQL) in SQL Server 7.0 and 2000 is the ability to connect to remote data sources. One capability of this feature is the ability to use ad hoc connections to connect to remote data sources without setting up a linked server for less-often used data-sources. This is made possible through the use of OLE DB providers, which are low-level data source providers. This capability is made possible by invoking the OLE DB provider directly by name in a query to connect to the remote data source.
An unchecked buffer exists in the handling of OLE DB provider names in ad hoc connections. A buffer overrun could occur as a result and could be used to either cause the SQL Server service to fail, or to cause code to run in the security context of the SQL Server. SQL Server can be configured to run in various security contexts, and by default runs as a domain user. The precise privileges the attacker could gain would depend on the specific security context that the service runs in.
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An unchecked buffer exists in the handling of OLE DB provider names in ad hoc connections. A buffer overrun could occur as a result and could be used to either cause the SQL Server service to fail, or to cause code to run in the security context of the SQL Server. SQL Server can be configured to run in various security contexts, and by default runs as a domain user. The precise privileges the attacker could gain would depend on the specific security context that the service runs in.
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MooSoft has released a new trojan definitions update for The Cleaner
Symantec has released a new virus definitions update for Norton Antivirus. Thanks Bidz.
Microsoft has released a patch for the Unchecked Buffer in SNMP Service Could Enable Arbitrary Code to be Run security vulnerability. Thanks Lemmi.
