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cURL "Content-Disposition" Header Filename Parsing Vulnerability
Release Date: 2010-10-14 Views: 3,414
Secunia Advisory SA39532
Where:
From remote
Impact:
System access,
Solution Status:
Vendor Patch
CVE Reference(s):
Description
A vulnerability has been reported in cURL, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused by an error in the "parse_filename()" function within src/main.c when stripping directory separators from the "Content-Disposition" HTTP header and can be exploited to overwrite files via a specially crafted server response.
Successful exploitation requires cURL to be invoked with the "-J/--remote-header-name" option on platforms which support the backslash ("\") directory separator (e.g. Windows, Netware, MSDOS, OS/2, and Symbian).
NOTE: The "libcurl" library is not affected.
The vulnerability is reported in versions 7.20.0 through 7.21.1.
Solution:
Update to version 7.21.2.
Provided and/or discovered by:
The vendor credits Dan Fandrich.
Original Advisory:
http://curl.haxx.se/docs/adv_20101013.html
Deep Links:
Links available to Secunia VIM customers
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com
Subject: cURL "Content-Disposition" Header Filename Parsing Vulnerability
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