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TITLE:
Microsoft IIS FTP Server Pre-Authentication Memory Corruption

SECUNIA ADVISORY ID:
SA42713

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42713/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42713

RELEASE DATE:
2010-12-23

DISCUSS ADVISORY:
http://secunia.com/advisories/42713/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42713/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
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https://ca.secunia.com/?page=viewadvisory&vuln_id=42713

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Matthew Bergin has discovered a vulnerability in Microsoft Internet
Information Services (IIS), which can be exploited by malicious
people to cause a DoS (Denial of Service) and potentially compromise
a vulnerable system.

The vulnerability is caused due to an error when processing FTP
requests and can be exploited to corrupt memory via an overly long,
specially crafted request.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in a fully patched IIS 7.5 for Windows
7 Professional. Other versions may also be affected.

SOLUTION:
Restrict traffic to the FTP service.

PROVIDED AND/OR DISCOVERED BY:
Matthew Bergin

ORIGINAL ADVISORY:
http://www.exploit-db.com/exploits/15803/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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