28 lines
1.1 KiB
Diff
28 lines
1.1 KiB
Diff
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From 4e16732c1c668c27e73574724d2d90537a74f67a Mon Sep 17 00:00:00 2001
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From: Tobias Brunner <tobias@strongswan.org>
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Date: Fri, 17 Jun 2016 18:19:48 +0200
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Subject: [PATCH] ikev1: Don't retransmit Aggressive Mode response
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These could theoretically be used for an amplified DDoS attack.
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---
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src/libcharon/sa/ikev1/task_manager_v1.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/src/libcharon/sa/ikev1/task_manager_v1.c b/src/libcharon/sa/ikev1/task_manager_v1.c
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index 48ec3e7..0912555 100644
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--- a/src/libcharon/sa/ikev1/task_manager_v1.c
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+++ b/src/libcharon/sa/ikev1/task_manager_v1.c
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@@ -770,8 +770,7 @@ static status_t build_response(private_task_manager_t *this, message_t *request)
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continue;
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case NEED_MORE:
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/* processed, but task needs another exchange */
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- if (task->get_type(task) == TASK_QUICK_MODE ||
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- task->get_type(task) == TASK_AGGRESSIVE_MODE)
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+ if (task->get_type(task) == TASK_QUICK_MODE)
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{ /* we rely on initiator retransmission, except for
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* three-message exchanges */
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expect_request = TRUE;
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--
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2.13.2
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