| ActiveMac | Anonymous | Create a User | Reviews | News | Forums | Advertise |
|
|
|
User Controls |
|
New User |
|
Login |
|
Edit/View My Profile |
|
|
|
|
|
|
|
ActiveMac |
|
Articles |
|
Forums |
|
Links |
|
News |
|
News Search |
|
Reviews |
|
|
|
|
|
|
|
News Centers |
|
Windows/Microsoft |
|
DVD |
|
ActiveHardware |
|
Xbox |
|
MaINTosh |
|
News Search |
|
|
|
|
|
|
|
ANet Chats |
|
The Lobby |
|
Special Events Room |
|
Developer's Lounge |
|
XBox Chat |
|
|
|
|
|
|
|
FAQ's |
|
Windows 98/98 SE |
|
Windows 2000 |
|
Windows Me |
|
Windows "Whistler" XP |
|
Windows CE |
|
Internet Explorer 6 |
|
Internet Explorer 5 |
|
Xbox |
|
DirectX |
|
DVD's |
|
|
|
|
|
|
|
TopTechTips |
|
Registry Tips |
|
Windows 95/98 |
|
Windows 2000 |
|
Internet Explorer 4 |
|
Internet Explorer 5 |
|
Windows NT Tips |
|
Program Tips |
|
Easter Eggs |
|
Hardware |
|
DVD |
|
|
|
|
|
|
|
Latest Reviews |
|
Applications |
|
Microsoft Windows XP Professional |
|
Norton SystemWorks 2002 |
|
|
|
Hardware |
|
Intel Personal Audio Player 3000 |
|
Microsoft Wireless IntelliMouse Explorer |
|
|
|
|
|
|
|
Site News/Info |
|
About This Site |
|
Affiliates |
|
ANet Forums |
|
Contact Us |
|
Default Home Page |
|
Link To Us |
|
Links |
|
Member Pages |
|
Site Search |
|
Awards |
|
|
|
|
|
|
|
Credits |
 |
Microsoft Security Bulletin MS02-025: Malformed Mail Attribute can Cause Exchange 2000 to Exhaust CPU Resources (Q320436) | |
|
||
| Time: 15:20 EST/20:20 GMT | News Source: ActiveWin.com | Posted By: Byron Hinson | ||
|
To support the exchange of mail with heterogeneous systems, Exchange messages use the attributes of SMTP mail messages that are specified by RFC's 821 and 822. There is a flaw in the way Exchange 2000 handles certain malformed RFC message attributes on received mail. Upon receiving a message containing such a malformation, the flaw causes the Store service to consume 100% of the available CPU in processing the message. A security vulnerability results because it is possible for an attacker to seek to exploit this flaw and mount a denial of service attack. An attacker could attempt to levy an attack by connecting directly to the Exchange server and passing a raw, hand-crafted mail message with a specially malformed attribute. When the message was received and processed by the Store service, the CPU would spike to 100%. The effects of the attack would last as long as it took for the Exchange Store service to process the message. Neither restarting the service nor rebooting the server would remedy the denial of service. | ||
|
Write Comment
Return to News |
Displaying 26 through 50 of 301 Prev | Last | Next |
The time now is
8:37:38 AM
ET.
Any comment problems? E-mail us |
|
Write Comment
Return to News |
Displaying 26 through 50 of 301 Prev | Last | Next |
The time now is
8:37:38 AM
ET.
Any comment problems? E-mail us |
