1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
From 6141d5aa3f5cf8f1b89472e7fdb66578810d0ae3 Mon Sep 17 00:00:00 2001
From: Eric Covener <covener@apache.org>
Date: Wed, 21 Apr 2021 01:02:11 +0000
Subject: [PATCH] legacy default slash-matching behavior w/ 'MergeSlashes OFF'
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1889036 13f79535-47bb-0310-9956-ffa450edef68
Upstream-Status: Backport
CVE: CVE-2021-30641
Reference to upstream patch:
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2021-30641
https://github.com/apache/httpd/commit/6141d5aa3f5cf8f1b89472e7fdb66578810d0ae3
Signed-off-by: Li Wang <li.wang@windriver.com>
---
server/request.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/server/request.c b/server/request.c
index d5c558a..18625af 100644
--- a/server/request.c
+++ b/server/request.c
@@ -1419,7 +1419,20 @@ AP_DECLARE(int) ap_location_walk(request_rec *r)
cache = prep_walk_cache(AP_NOTE_LOCATION_WALK, r);
cached = (cache->cached != NULL);
- entry_uri = r->uri;
+
+ /*
+ * When merge_slashes is set to AP_CORE_CONFIG_OFF the slashes in r->uri
+ * have not been merged. But for Location walks we always go with merged
+ * slashes no matter what merge_slashes is set to.
+ */
+ if (sconf->merge_slashes != AP_CORE_CONFIG_OFF) {
+ entry_uri = r->uri;
+ }
+ else {
+ char *uri = apr_pstrdup(r->pool, r->uri);
+ ap_no2slash(uri);
+ entry_uri = uri;
+ }
/* If we have an cache->cached location that matches r->uri,
* and the vhost's list of locations hasn't changed, we can skip
@@ -1486,7 +1499,7 @@ AP_DECLARE(int) ap_location_walk(request_rec *r)
pmatch = apr_palloc(rxpool, nmatch*sizeof(ap_regmatch_t));
}
- if (ap_regexec(entry_core->r, entry_uri, nmatch, pmatch, 0)) {
+ if (ap_regexec(entry_core->r, r->uri, nmatch, pmatch, 0)) {
continue;
}
@@ -1496,7 +1509,7 @@ AP_DECLARE(int) ap_location_walk(request_rec *r)
apr_table_setn(r->subprocess_env,
((const char **)entry_core->refs->elts)[i],
apr_pstrndup(r->pool,
- entry_uri + pmatch[i].rm_so,
+ r->uri + pmatch[i].rm_so,
pmatch[i].rm_eo - pmatch[i].rm_so));
}
}
--
2.7.4
|
