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Tor Hidden Service Disclosure Weakness
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Secunia Advisory:
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SA18576
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Release Date:
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2006-01-23
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Last Update:
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2006-05-25
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Popularity:
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8,835 views
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
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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: | Tor 0.1.0.x
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| CVE reference: | CVE-2006-0414
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Description:
Lasse Overlier and Paul Syverson have reported a weakness in Tor, which can be exploited by malicious people to disclose certain sensitive information.
The weakness is caused due to a design error in Tor. This can be exploited to reveal the location of a hidden service more quickly than was previously thought by setting up a malicious Tor server and accessing the hidden service repeatedly while keeping track of who builds circuits through the malicious server shortly after each access.
The weakness has been reported in all stable versions and all experimental versions through 0.1.1.10-alpha.
Solution:
Update to version 0.1.1.20.
http://tor.eff.org/download.html
Provided and/or discovered by:
Lasse Overlier and Paul Syverson
Changelog:
2006-01-26: Added CVE reference.
2006-05-25: Vendor released fixed version. Updated "Solution" and "Original Advisory" section.
Original Advisory:
http://archives.seul.org/or/announce/Jan-2006/msg00001.html
http://archives.seul.org/or/announce/May-2006/msg00000.html
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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