Scott Bennett wrote:
It has now been several hours since I posted a message about an impostor authority. Having received no response thus far from the list, I am reposting the message below with a stronger Subject: line. I'd also like to make the additional comment that I would very much like to see a torrc line available, similar to ExcludeNodes, that would allow individual tor operators to ignore specific directory servers when those operators decide there is a problem with those servers. For example, "ExcludeAuthorities" would refuse to accept status or consensus documents from the listed servers. "ExcludeDirectoryNodes" would refuse to contact the DirPort of each listed server.Scott --------------------------------------------------------------------- This cached-status file begins with: dir-source s15192785 212.227.86.59 9030 fingerprint 1A0999C05AE2B9A3CF474077F06060E91B3A847B contact Random Person <[EMAIL PROTECTED]> published 2008-03-29 09:54:11 dir-options dir-signing-key -----BEGIN RSA PUBLIC KEY----- MIGJAoGBAM8/5QA67aqGKO8z65hB+noDVOjZaZg1FAzou5wHlx0Q8UgfCmwVbCE0 tvd1hP2pBl0+4vHaYE0/p2DDll2Zn2BjBdQcI4AYcPA1CjlYdDNl316d3PwTVArc OpfckZireM0LprNId0PXSycKmwmWxeX88t66eNGyFxnsjamK2k3ZAgMBAAE= -----END RSA PUBLIC KEY----- The above lines are then followed by the usual "r" and "s" lines, but oddly enough, no "opt" lines. Usually I see three lines (one of each of the above) for each router. However, looking for that IP address (212.227.86.59) in this section, I find not "s15192785", but "abutor": r abutor GgmZwFriuaPPR0B38GBg6Rs6hHs 4Oj8zvA0SAIoRuEI2y9MsGYsBk4 2008-03-28 21:07:43 212.227.86.59 9001 9030 s Authority Fast Stable Running Valid V2Dir Notice the "Authority" flag in the "r" line above. This flag does not appear for this router in any of the other four cached-status files. So how do I block this bogus cached-status file and its illegitimate "Authority" flag for a screwed up router with bad contact information? Scott Bennett, Comm. ASMELG, CFIAG ********************************************************************** * Internet: bennett at cs.niu.edu * *--------------------------------------------------------------------* * "A well regulated and disciplined militia, is at all times a good * * objection to the introduction of that bane of all free governments * * -- a standing army." * * -- Gov. John Hancock, New York Journal, 28 January 1790 * **********************************************************************
Very interesting, and thank you very much for keeping an eye on this for the rest of us. I was wondering why I was getting weird error messages about not being able to match some descriptors in my tor.log file, but I didn't save it so I can't compare it to your findings.
I'll keep my eye out now for sure though....thanks again. - Kyle
