Microsoft Exchange calendar attachment buffer overflow
| exchange-calendar-code-execution (25556) |  High Risk |
Description:
Microsoft Exchange Server could allow a remote attacker to execute arbitrary code on the system, caused by a heap-based buffer overflow in the Collaboration Data Objects for Exchange (CDOEX) and Exchange Collaboration Data Objects (EXCDO) interfaces. By sending a specially-crafted calendar attachment containing malformed iCal or vCal properties, a remote attacker could overflow a buffer and cause the Exchange Server to crash or execute arbitrary code and possibly gain complete control of the affected system.
Consequences:
Gain Access
Remedy:
For vulnerability detection:
Enable the following checks in the ISS Protection platform:
WinMs06kb916803Update
Enable the following checks in the Dynamic ISS Protection platform:
Email_Exchange_Calendar_Malformed
For Manual Protection:
Apply the appropriate patch for your system, as listed in the latest Microsoft Security Bulletin. See References.
— OR —
Use Microsoft Automatic Update if it is supported by your operating system. The original bulletin issued by Microsoft has been superseded.
References:
- Internet Security Systems Protection Alert May 9, 2006: Microsoft Exchange Calendar Attachment Heap-based Overflow.
- Microsoft Security Bulletin MS06-019: Vulnerability in Microsoft Exchange Could Allow Remote Code Execution (916803).
- Microsoft Security Bulletin MS07-026: Vulnerabilities in Microsoft Exchange Could Allow Remote Code Execution (931832).
- Microsoft Security Bulletin MS08-039: Vulnerabilities in Outlook Web Access for Exchange Server Could Allow Elevation of Privilege (953747).
- Microsoft Security Bulletin MS09-003: Vulnerabilities in Microsoft Exchange Could Allow Remote Code Execution (959239).
- NORTEL BULLETIN ID: 2008008958, Rev 1: Centrex IP Client Manager (CICM) response to Microsoft July security bulletin .
- US-CERT Technical Cyber Security Alert TA06-129A: Microsoft Windows and Exchange Server Vulnerabilities.
- ASA-2006-099: Windows Security Updates for May 2006 - (MS06-018 - MS06-020)
- BID-17908: Microsoft Exchange Server Calendar Remote Code Execution Vulnerability
- CVE-2006-0027: Unspecified vulnerability in Microsoft Exchange allows remote attackers to execute arbitrary code via e-mail messages with crafted (1) vCal or (2) iCal Calendar properties.
- OSVDB ID: 25338: Microsoft Exchange Collaboration Data Objects Crafted Email Code Execution
- SA20029: Microsoft Exchange Server Calendar Vulnerability
- SECTRACK ID: 1016048: Microsoft Exchange Error in Processing iCAL/vCAL Properties Lets Remote Users Execute Arbitrary Code
- US-CERT VU#303452: Microsoft Exchange fails to properly handle vCal and iCal properties
- VUPEN/ADV-2006-1743: Microsoft Exchange Server Calendar Remote Buffer Overflow Vulnerability (MS06-019)
Platforms Affected:
- Microsoft Exchange Server 2000
- Microsoft Exchange Server 2003 SP2
- Microsoft Exchange Server 2003 SP1
Reported:
May 09, 2006
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