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Perlbal Chunked Uploads Denial of Service and Directory Traversal
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Secunia Advisory:
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SA29565
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Release Date:
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2008-03-31
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Last Update:
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2008-04-10
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Critical:
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Moderately critical
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Impact:
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Exposure of sensitive information
DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Perlbal 1.x
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| | CVE reference: | CVE-2008-1532 (Secunia mirror)
CVE-2008-1652 (Secunia mirror)
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Description:
Some vulnerabilities have been reported in Perlbal, which can be exploited by malicious people to disclose potentially sensitive information or cause a DoS (Denial of Service).
1) An error exists within lib/Perlbal/ClientProxy.pm when handling chunked uploads with a length of zero. This can be exploited to crash the service by sending specially crafted requests.
Successful exploitation may require that "buffer_uploads" is enabled.
2) Certain input is not properly sanitised within the "_serve_request_multiple()" function in lib/Perlbal/ClientHTTPBase.pm. This can be exploited to perform a single upward directory traversal and disclose potentially sensitive information by sending specially crafted requests to the service.
The vulnerabilities are reported in versions prior to 1.70.
Solution:
Update to version 1.70.
Provided and/or discovered by:
1) Jeremey James
2) hachi
Changelog:
2008-04-10: Added CVE reference.
Original Advisory:
http://search.cpan.org/src/BRADFITZ/Perlbal-1.70/CHANGES
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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