FCKeditor ::$DATA file upload
| fckeditor-data-file-upload (34982) |  Medium Risk |
Description:
FCKeditor could allow a remote attacker to upload arbitrary PHP files, caused by improper validation of file extensions. A remote attacker could send a specially-crafted request using an alternate data stream syntax (::$DATA) to upload a malicious PHP file, which could allow the attacker to execute arbitrary PHP code on the vulnerable system.
*CVSS:
| Base Score: | 3.4 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 2.5 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Knowledgeroot Knowledgebase (0.9.8.4 or later), available from SourceForge.net: Files. See References.
References:
- bitchiller Web site: NTFS Alternate Data Streams und Dateiuploads auf Webseiten.
- FCKeditor Web site: FCKeditor - The text editor for Internet.
- ha.ckers.org Web application security lab Blog, Wednesday, June 6th, 2007: Additional Image Bypass on Windows.
- SourceForge.net: Files: Knowledgeroot Knowledgebase - File Release Notes and Changelog - Release Name: 0.9.8.4.
- BID-24510: FCKeditor Alternative Data Stream Arbitrary File Upload Vulnerability
- CVE-2007-3163: Incomplete blacklist vulnerability in the filemanager in Frederico Caldeira Knabben FCKeditor 2.4.2 allows remote attackers to upload arbitrary .php files via an alternate data stream syntax, as demonstrated by .php::$DATA filenames, a related issue to CVE-2006-0658.
- SA25719: FCKeditor ADS File Upload Vulnerability
- SA25923: Knowledgeroot Knowledgebase FCKeditor ADS File Upload Vulnerability
Platforms Affected:
- FCKeditor FCKeditor 2.4.3
Reported:
Jun 06, 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.