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Tor Circuit Generation Entry Guard Check Weakness
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Secunia Advisory:
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SA25415
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Release Date:
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2007-05-28
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Last Update:
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2007-06-13
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Popularity:
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6,190 views
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Critical:
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Not 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
Tor 0.1.1.x
Tor 0.1.2.x
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Subscribe:
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| CVE reference: | CVE-2007-3165
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Description:
lodger has reported a weakness in Tor, which potentially can be exploited by malicious people to expose sensitive information.
When building a circuit, Tor checks if an entry guard is exactly the same as an exit guard, but fails to check if they are also part of the same family. This may weaken the Tor security concept and could make it easier to launch certain attacks.
The weakness is reported in versions prior to 0.1.2.14.
Solution:
Update to version 0.1.2.14.
Provided and/or discovered by:
lodger
Changelog:
2007-06-13: Added CVE reference.
Original Advisory:
http://archives.seul.org/or/announce/May-2007/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.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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