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Merge remote-tracking branch 'tor-github/pr/1343' into maint-0.3.5

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teor 2019-11-06 11:16:09 +10:00
commit 6bfdd09679
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2 changed files with 9 additions and 2 deletions
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5
changes/ticket31466 Normal file
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@ -0,0 +1,5 @@
o Minor bugfixes (logging):
- Rate-limit our the logging message about the obsolete .exit notation.
Previously, there was no limit on this warning, which could potentially
be triggered many times by a hostile website. Fixes bug 31466;
bugfix on 0.2.2.1-alpha.

6
src/core/or/connection_edge.c
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@ -1598,8 +1598,10 @@ connection_ap_handshake_rewrite(entry_connection_t *conn,
* disallowed when they're coming straight from the client, but you're
* allowed to have them in MapAddress commands and so forth. */
if (!strcmpend(socks->address, ".exit")) {
log_warn(LD_APP, "The \".exit\" notation is disabled in Tor due to "
"security risks.");
static ratelim_t exit_warning_limit = RATELIM_INIT(60*15);
log_fn_ratelim(&exit_warning_limit, LOG_WARN, LD_APP,
"The \".exit\" notation is disabled in Tor due to "
"security risks.");
control_event_client_status(LOG_WARN, "SOCKS_BAD_HOSTNAME HOSTNAME=%s",
escaped(socks->address));
out->end_reason = END_STREAM_REASON_TORPROTOCOL;