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Never choose a bridge as an exit. Bug 5342.

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This commit is contained in:
Nick Mathewson 2012-03-09 14:27:50 -05:00
parent 8abfcc0804
commit 99bd5400e8
2 changed files with 8 additions and 1 deletions
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3
changes/bug5342 Normal file
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@ -0,0 +1,3 @@
o Security fixes:
- Never use a bridge as an exit, even if it claims to be one. Found by
wanoskarnet. Fixes bug 5342. Bugfix on ????.

6
src/or/circuitbuild.c
View File

@ -2704,7 +2704,11 @@ choose_good_exit_server_general(routerlist_t *dir, int need_uptime,
n_supported[i] = -1;
continue; /* skip routers that are known to be down or bad exits */
}
if (router->purpose != ROUTER_PURPOSE_GENERAL) {
/* never pick a non-general node as a random exit. */
n_supported[i] = -1;
continue;
}
if (options->_ExcludeExitNodesUnion &&
routerset_contains_router(options->_ExcludeExitNodesUnion, router)) {
n_supported[i] = -1;