Microsoft Exchange Server OWA cross-site request forgery

ms-owa-csrf (60164) The risk level is classified as MediumMedium Risk

Description:

Microsoft Exchange Server is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input by the Outlook Web Access component. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a specially-crafted HTTP request to gain complete control of the mail account. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.7
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Microsoft Exchange Server (2007 SP3 or later), available from the Microsoft Web site. See References.

References:

  • Microsoft Web site: Exchange Server.
  • Offensive Security Exploit Database [07-08-2010]: Outlook Web Access 2007 CSRF Vulnerability.
  • Tentacolo Viola : Pwning corporate webmails .
  • BID-41462: Microsoft Exchange Server Outlook Web Access Cross Site Request Forgery Vulnerability
  • CVE-2010-3213: Cross-site request forgery (CSRF) vulnerability in Microsoft Outlook Web Access (owa/ev.owa) 2007 through SP2 allows remote attackers to hijack the authentication of e-mail users for requests that perform Outlook requests, as demonstrated by setting the auto-forward rule.
  • OSVDB ID: 67119: Microsoft Outlook Web Access (OWA) Multiple Function CSRF

Platforms Affected:

  • Microsoft Exchange Server 2007
  • Microsoft Exchange Server 2007 SP2
  • Microsoft Exchange Server 2007 SP1

Reported:

Jul 08, 2010

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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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