CVE-2009-1535

High

Description

The WebDAV extension in Microsoft Internet Information Services (IIS) 5.1 and 6.0 allows remote attackers to bypass URI-based protection mechanisms, and list folders or read, create, or modify files, via a %c0%af (Unicode / character) at an arbitrary position in the URI, as demonstrated by inserting %c0%af into a "/protected/" initial pathname component to bypass the password protection on the protected\ folder, aka "IIS 5.1 and 6.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1122.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Microsoft Internet Information Services

PublishedJun 10, 2009

First seenJun 10, 2009

How to fix

Vendor advisories

docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020

Affected products

Product	Affected versions	Fixed in
microsoft internet_information_services	5.1, 6.0	—

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