Microsoft Outlook Web Access (OWA) redir.asp phishing

owa-redir-phishing (46061)

Medium Risk

Description:

Microsoft Outlook Web Access (OWA) could allow a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability in the redir.asp script. An attacker could exploit this vulnerability using the "URL" parameter in a specially-crafted URL to redirect a victim to arbitrary Web sites.

*CVSS:

Base Score:	4.3
Access Vector:	Network
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	None
Temporal Score:	4.1
Exploitability:	High
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Gain Access

Remedy:

No remedy available as of July 9, 2011.

References:

• BugTraq Mailing List, Wed Oct 15 2008 - 04:18:24 CDT : MS OWA 2003 Redirection Vulnerability.
• Microsoft Web site: Microsoft Exchange Server Outlook Web Access Web Administration.
• BID-31765: Microsoft Outlook Web Access for Exchange Server 'redir.asp' URI Redirection Vulnerability
• CVE-2008-1547: Open redirect vulnerability in exchweb/bin/redir.asp in Microsoft Outlook Web Access (OWA) for Exchange Server 2003 SP2 (aka build 6.5.7638) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the URL parameter.

Platforms Affected:

• Microsoft Outlook Web Access 2003 SP2

Reported:

Oct 15, 2008

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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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