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51 lines
1.7 KiB
Diff
51 lines
1.7 KiB
Diff
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Fix CVE-2016-6255:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6255
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http://www.openwall.com/lists/oss-security/2016/07/18/13
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Patch adapted from upstream commit:
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https://github.com/mrjimenez/pupnp/commit/d64d6a44906b5aa5306bdf1708531d698654dda5
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The upstream change is simplified to unconditionally disable the HTTP
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POST feature.
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From d64d6a44906b5aa5306bdf1708531d698654dda5 Mon Sep 17 00:00:00 2001
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From: Matthew Garrett <mjg59@srcf.ucam.org>
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Date: Tue, 23 Feb 2016 13:53:20 -0800
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Subject: [PATCH] Don't allow unhandled POSTs to write to the filesystem by
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default
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If there's no registered handler for a POST request, the default behaviour
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is to write it to the filesystem. Several million deployed devices appear
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to have this behaviour, making it possible to (at least) store arbitrary
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data on them. Add a configure option that enables this behaviour, and change
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the default to just drop POSTs that aren't directly handled.
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Signed-off-by: Marcelo Roberto Jimenez <mroberto@users.sourceforge.net>
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(cherry picked from commit c91a8a3903367e1163765b73eb4d43be7d7927fa)
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---
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configure.ac | 9 +++++++++
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upnp/inc/upnpconfig.h.in | 9 +++++++++
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upnp/src/genlib/net/http/webserver.c | 4 ++++
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3 files changed, 22 insertions(+)
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diff --git a/upnp/src/genlib/net/http/webserver.c b/upnp/src/genlib/net/http/webserver.c
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index 26bf0f7..7ae8c1e 100644
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--- a/upnp/src/genlib/net/http/webserver.c
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+++ b/upnp/src/genlib/net/http/webserver.c
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@@ -1367,9 +1367,13 @@ static int http_RecvPostMessage(
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if (Fp == NULL)
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return HTTP_INTERNAL_SERVER_ERROR;
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} else {
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+#if 0
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Fp = fopen(filename, "wb");
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if (Fp == NULL)
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return HTTP_UNAUTHORIZED;
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+#else
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+ return HTTP_NOT_FOUND;
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+#endif
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}
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parser->position = POS_ENTITY;
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do {
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