2006-12-17: Tor 0.1.1.26 fixes HttpProxyAuthenticator privacy flaw

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Tor 0.1.1.26 fixes a serious privacy bug for people who use the HttpProxyAuthenticator config option: Tor would send your proxy auth directly to the directory server when you're tunnelling directory requests through Tor. Specifically, this happens when publishing or accessing hidden services, or when you have set FascistFirewall or ReachableAddresses and you're accessing a directory server that's not reachable directly.

The OS X stable bundles now also feature a new Vidalia version (0.0.9) and a new Privoxy version (3.0.6).

If you use HttpProxyAuthenticator, we recommend you switch to 0.1.1.26 or stop using it for now. The upcoming 0.1.2.5-alpha (not yet finished) will have this bugfix too. For people running 0.1.0.x who absolutely cannot upgrade, here's your patch:

Changes in version 0.1.1.26 - 2006-12-14

  • Security bugfixes:
    • Stop sending the HttpProxyAuthenticator string to directory servers when directory connections are tunnelled through Tor.
    • Clients no longer store bandwidth history in the state file.
    • Do not log introduction points for hidden services if SafeLogging is set.
  • Minor bugfixes:
    • Fix an assert failure when a directory authority sets AuthDirRejectUnlisted and then receives a descriptor from an unlisted router (reported by seeess).


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