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Forces downloads using https-only for resources or rules

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This commit makes ModSecurity to refuse to download or install rules
(SecRemoteRules) from sites that are not running HTTPS with a valid and
trusted certificate.
This commit is contained in:
Felipe Zimmerle
2014-11-13 12:52:00 -08:00
parent 59fc243503
commit b5398abaf2
5 changed files with 38 additions and 10 deletions
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6
apache2/apache2_config.c
View File

@@ -2266,11 +2266,9 @@ static const char *cmd_remote_rules(cmd_parms *cmd, void *_dcfg, const char *p1,
"Key and URI");
}
// FIXME: make it https only.
// if (strncasecmp(p1, "https", 5) != 0) {
if (strncasecmp(uri, "http", 4) != 0) {
if (strncasecmp(uri, "https", 5) != 0) {
return apr_psprintf(cmd->pool, "ModSecurity: Invalid URI:" \
" %s, expected an HTTPS address.", uri);
" '%s'. Expected HTTPS.", uri);
}
// FIXME: Should we handle more then one server at once?

7
apache2/msc_remote_rules.c
View File

@@ -283,6 +283,13 @@ int msc_remote_grab_content(apr_pool_t *mp, const char *uri, const char *key,
headers_chunk = curl_slist_append(headers_chunk, header_key);
}
/* Make it TLS 1.x only. */
curl_easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
/* those are the default options, but lets make sure */
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, msc_curl_write_memory_cb);

7
apache2/msc_util.c
View File

@@ -2684,6 +2684,13 @@ int ip_tree_from_uri(TreeRoot **rtree, char *uri,
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* Make it TLS 1.x only. */
curl_easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
/* those are the default options, but lets make sure */
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1);
/* some servers don't like requests that are made without a user-agent
field, so we provide one */
curl_easy_setopt(curl, CURLOPT_USERAGENT, "ModSecurity");

26
apache2/re_operators.c
View File

@@ -195,8 +195,13 @@ static int msre_op_ipmatchFromFile_param_init(msre_rule *rule, char **error_msg)
}
filepath = fn;
if ((strlen(fn) > strlen("http://") && strncmp(fn, "http://", strlen("http://")) == 0) ||
(strlen(fn) > strlen("https://") && strncmp(fn, "https://", strlen("https://")) == 0))
if (strlen(fn) > strlen("http://") && strncmp(fn, "http://", strlen("http://")) == 0)
{
*error_msg = apr_psprintf(rule->ruleset->mp, "HTTPS address or file " \
"path are expected for operator ipmatchFromFile \"%s\"", fn);
return 0;
}
else if (strlen(fn) > strlen("https://") && strncmp(fn, "https://", strlen("https://")) == 0)
{
res = ip_tree_from_uri(&rtree, fn, rule->ruleset->mp, error_msg);
if (res)
@@ -1251,10 +1256,14 @@ static int msre_op_pmFromFile_param_init(msre_rule *rule, char **error_msg) {
/* Add path of the rule filename for a relative phrase filename */
filepath = fn;
if ((strlen(fn) > strlen("http://") && strncmp(fn, "http://", strlen("http://")) == 0) ||
(strlen(fn) > strlen("https://") && strncmp(fn, "https://", strlen("https://")) == 0))
if (strlen(fn) > strlen("http://") && strncmp(fn, "http://", strlen("http://")) == 0)
{
*error_msg = apr_psprintf(rule->ruleset->mp, "HTTPS address or " \
"file path are expected for operator pmFromFile \"%s\"", fn);
return 0;
}
else if (strlen(fn) > strlen("https://") && strncmp(fn, "https://", strlen("https://")) == 0)
{
CURL *curl;
CURLcode res;
@@ -1309,6 +1318,13 @@ static int msre_op_pmFromFile_param_init(msre_rule *rule, char **error_msg) {
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* Make it TLS 1.x only. */
curl_easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
/* those are the default options, but lets make sure */
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1);
/* some servers don't like requests that are made without a user-agent
field, so we provide one */
curl_easy_setopt(curl, CURLOPT_USERAGENT, "ModSecurity");