From 96cff65f855f67ad216590620e1442ffee608f80 Mon Sep 17 00:00:00 2001 From: Roger Dingledine Date: Sun, 19 Aug 2007 02:51:54 +0000 Subject: [PATCH] backport candidate: Refuse to start with certain directory authority keys, and encourage people using them to stop. svn:r11171 --- ChangeLog | 2 ++ src/or/config.c | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/ChangeLog b/ChangeLog index d9e2f63d60..99cd754bdb 100644 --- a/ChangeLog +++ b/ChangeLog @@ -28,6 +28,8 @@ Changes in version 0.2.0.5-alpha - 2007-08-19 o Minor features (security): - Warn about unsafe ControlPort configurations. + - Refuse to start with certain directory authority keys, and + encourage people using them to stop. o Minor features (controller): - Add a PROTOCOLINFO controller command. Like AUTHENTICATE, it diff --git a/src/or/config.c b/src/or/config.c index e76db2cfdb..048266f456 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -3823,6 +3823,13 @@ parse_dir_server_line(const char *line, int validate_only) (int)strlen(fingerprint)); goto err; } + if (!strcmp(fingerprint, "E623F7625FBE0C87820F11EC5F6D5377ED816294")) { + /* a known bad fingerprint. refuse to use it. */ + log_warn(LD_CONFIG, "Dangerous dirserver line. To correct, erase your " + "torrc file (%s), or reinstall Tor and use the default torrc.", + get_torrc_fname()); + goto err; + } if (base16_decode(digest, DIGEST_LEN, fingerprint, HEX_DIGEST_LEN)<0) { log_warn(LD_CONFIG, "Unable to decode DirServer key digest."); goto err;