Microsoft Outlook Web Access owalogon.asp script URL redirect

owa-owalogonasp-url-redirect (19225)

Medium Risk

Description:

Microsoft Outlook Web Access (OWA) could allow a remote attacker to redirect URL requests. By sending a specially-crafted URL containing malicious characters to the owalogon.asp script, a remote attacker could redirect the victim to an arbitrary Web site, once the link is clicked.

*CVSS:

Base Score:	7
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	5.2
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Obtain Information

Remedy:

Upgrade to the Microsoft Exchange Server 2007, available from the Microsoft Web site. See References.

References:

• Full-Disclosure Mailing List, Sun Feb 06 2005 - 18:00:10 CST : Microsoft Outlook Web Access URL Injection Vulnerability.
• Microsoft Web site: Microsoft Exchange Server 2007.
• BID-12459: Microsoft Outlook Web Access Login Form Remote URI Redirection Vulnerability
• CVE-2005-0420: Microsoft Outlook Web Access (OWA), when used with Exchange, allows remote attackers to redirect users to arbitrary URLs for login via a link to the owalogon.asp application.
• SA14144: Microsoft Outlook Web Access "owalogon.asp" Redirection Weakness
• VUPEN/ADV-2005-0105: Microsoft Outlook Web Access URL Injection Vulnerability

Platforms Affected:

• Microsoft Outlook Web Access

Reported:

Feb 05, 2005

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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.

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