SurgeFTP error message cross-site scripting

surgeftp-error-xss (35378) The risk level is classified as MediumMedium Risk

Description:

SurgeFTP is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the mirror server Web interface. A remote attacker could exploit this vulnerability using an invalid server response to inject malicious script into an error message which would be executed in a victim's Web browser within the security context of the hosting Web site, once the message is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.

*CVSS:

Base Score: 4.2
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Partial
  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 SurgeFTP (7/12/2007 or later), available from the SurgeFTP Web site. See References.

References:

  • Full-Disclosure Mailing List, Tue Jul 10 2007 - 10:41:02 CDT: Portcullis Computer Security Ltd - 06-062.
  • SurgeFTP Web site: SurgeFTP -- Unix/Windows Ftp Server Software.
  • BID-24892: NetWin SurgeFTP Multiple Remote Vulnerabilities
  • CVE-2007-3769: Cross-site scripting (XSS) vulnerability in the mirrored server management interface in SurgeFTP 2.3a1 allows user-assisted, remote FTP servers to inject arbitrary web script or HTML via a malformed response without a status code, which is reflected to the user in the resulting error message. NOTE: this can be leveraged for root access via a sequence of steps involving web script that creates a new FTP user account.
  • OSVDB ID: 37911: NetWin SurgeFTP Mirrored Management Interface Malformed Response XSS
  • SA26061: SurgeFTP Denial of Service and Script Insertion Vulnerability

Platforms Affected:

  • NetWin SurgeFTP Server 2.3a1

Reported:

Jul 12, 2007

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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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