Microsoft Internet Explorer mhtml://mid URL buffer overflow
| ie-mhtml-mid-bo (26810) |  High Risk |
Description:
Microsoft Internet Explorer is vulnerable to a buffer overflow in the inetcomm.dll file. By creating an overly long mhtml:mid: URL, a remote attacker could overflow a buffer and cause a victim's browser to crash or possibly execute arbitrary code on the victim's system, if the attacker could persuade the victim to click the malicious URL.
*CVSS:
| Base Score: | 5.6 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 4.4 |
| Exploitability: | Proof-Of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
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 The original bulletin issued by Microsoft has been superseded.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:
- Bugtraq Mailing List, Wed May 31 2006 - 15:12:01 CDT : Internet explorer Vulnerbility (sp).
- Microsoft Security Bulletin MS06-043: Vulnerability in Microsoft Windows Could Allow Remote Code Execution (920214).
- Microsoft Security Bulletin MS06-076: Cumulative Security Update for Outlook Express (923694).
- Microsoft Security Bulletin MS07-056: Security Update for Outlook Express and Windows Mail (941202).
- Microsoft Security Bulletin MS08-048: Security Update for Outlook Express and Windows Mail (951066).
- US-CERT Technical Cyber Security Alert TA06-220A: Microsoft Windows, Office, and Internet Explorer Vulnerabilities.
- ASA-2006-154: Windows Security Updates for August 2006 - (MS06-040 - MS06-051)
- BID-18198: Microsoft Windows MHTML URI Buffer Overflow Vulnerability
- CVE-2006-2766: Buffer overflow in INETCOMM.DLL, as used in Microsoft Internet Explorer 6.0 through 6.0 SP2, Windows Explorer, Outlook Express 6, and possibly other programs, allows remote user-assisted attackers to cause a denial of service (application crash) via a long mhtml URI in the URL value in a URL file.
- OSVDB ID: 25949: Microsoft Windows INETCOMM.DLL mhtml: URI Overflow
- SA20384: Microsoft Windows "mhtml:" URI Buffer Overflow Vulnerability
- SECTRACK ID: 1016654: Microsoft Outlook Express MHTML Parsing Error Lets Remote Users Execute Arbitrary Code
- US-CERT VU#891204: Microsoft Windows fails to properly parse the MHTML protocol
- VUPEN/ADV-2006-2088: Microsoft Windows mhtml Protocol Remote Buffer Overflow Vulnerability (MS06-043)
Platforms Affected:
- Microsoft Internet Explorer 6
- Microsoft Windows 2003 Server x64
- Microsoft Windows 2003 Server SP1
- Microsoft Windows 2003 Server SP1 Itanium
- Microsoft Windows XP SP2
- Microsoft Windows XP x64 Professional
Reported:
May 31, 2006
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For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.