Serendipity unspecified file upload

serendipity-unspecified-file-upload (54985)

Medium Risk

Description:

Serendipity could allow a remote attacker to upload arbitrary files, caused by the improper validation of file extensions. By sending a specially-crafted HTTP request, a remote attacker could exploit this vulnerability to upload a malicious PHP script, which could allow the attacker to execute arbitrary PHP code on the vulnerable system.

*CVSS:

Base Score:	6
Access Vector:	Network
Access Complexity:	Medium
Authentication:	Single
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	4.4
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Serendipity (1.5 or later), available from the Serendipity Web site. See References.

References:

• Serendipity Web Site: Serendipity 1.5 released.
• CVE-2009-4412: Unrestricted file upload vulnerability in Serendipity before 1.5 allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension followed by a safe extension, then accessing it via a direct request to the file in an unspecified directory. NOTE: some of these details are obtained from third party information.
• SA37830: Serendipity Arbitrary File Upload Security Issue
• VUPEN/ADV-2009-3626: Serendipity File Extension Processing Arbitrary File Upload Vulnerability

Platforms Affected:

• s9y Serendipity 1.4

Reported:

Dec 22, 2009

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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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