Fritz!DSL Software AVM directory traversal

fritz-avm-directory-traversal (31556)

Medium Risk

Description:

Fritz!DSL Software could allow a remote attacker to traverse directories on the system, caused by a vulnerability in the AVM IGD CTRL service. An attacker could send a specially-crafted HTTP request on port 49001 containing URL-encoded "dot dot" sequences (..%5C) to traverse directories and view arbitrary files on the system.

*CVSS:

Base Score:	5
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	Complete
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	4.8
Exploitability:	High
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Obtain Information

Remedy:

No remedy available as of July 9, 2011.

References:

• Fritz! Web site: ADSL: Unauthorized Access to Your Computer.
• Full-Disclosure Mailing List, Wed Jan 17 2007 - 06:16:58 CST: Flaw in AVM UPNP service for windows.
• BID-22093: AVM Fritz!DSL IGD Control Service Directory Traversal Information Disclosure Vulnerability
• CVE-2007-0357: Directory traversal vulnerability in the AVM IGD CTRL Service in Fritz!DSL 02.02.29 allows remote attackers to read arbitrary files via ..%5C (URL-encoded dot dot backslash) sequences in a URI requested from the AR7 webserver.
• SA23774: Fritz!DSL Software AR7 Web Server Directory Traversal
• VUPEN/ADV-2007-0236: AVM Fritz!DSL Software AR7 Web Server Remote Directory Traversal Vulnerability

Platforms Affected:

• AVM Fritz!DSL Software 02.02.29

Reported:

Jan 17, 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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