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FuzzyHash: if disable giving an run time error instead of config

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FuzzyHash operator is optional and only installed if the headers for libfuzzy
was found in the system. Otherwise, the FuzzyHash operator is disable during
the compilation. After this commit, if some rules tries to use it, ModSecurity
will produce an runtime error not a config time error, allowing the web server
to procede normal with its operations.
This commit is contained in:
Felipe Zimmerle 2014-09-22 14:47:43 -07:00
parent fa0c97ea7b
commit a45fe95ed5
2 changed files with 10 additions and 7 deletions
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11
apache2/re_operators.c
View File

@ -3789,12 +3789,9 @@ static int msre_op_fuzzy_hash_init(msre_rule *rule, char **error_msg)
rule->op_param_data = param_data; rule->op_param_data = param_data;
#else #else
*error_msg = apr_psprintf(rule->ruleset->mp, "ModSecurity was not " \
"compiled with ssdeep support.");
rule->op_param_data = NULL; rule->op_param_data = NULL;
return -1; return 1;
#endif #endif
return 1; return 1;
@ -3852,6 +3849,12 @@ static int msre_op_fuzzy_hash_execute(modsec_rec *msr, msre_rule *rule,
} }
fclose(fp); fclose(fp);
#else
*error_msg = apr_psprintf(rule->ruleset->mp, "ModSecurity was not " \
"compiled with ssdeep support.");
return -1;
#endif #endif
/* No match. */ /* No match. */

6
tests/regression/misc/30-fuzzyHash.t
View File

@ -12,11 +12,11 @@
SecRule REQUEST_BODY "\@fuzzyHash $ENV{CONF_DIR}/ssdeep.txt 1" "id:192372,log,deny" SecRule REQUEST_BODY "\@fuzzyHash $ENV{CONF_DIR}/ssdeep.txt 1" "id:192372,log,deny"
), ),
match_log => { match_log => {
error => [ qr/ModSecurity: Access denied with code 403 \(phase 2\)\. Fuzzy hash of REQUEST_BODY matched with 96:MbQ1L0LDX8GPI8ov3D2D9zd6.*"modsecurity.conf-recommended"/, 1], error => [ qr/ModSecurity: Access denied with code 403 \(phase 2\)\. Fuzzy hash of REQUEST_BODY matched with 96:MbQ1L0LDX8GPI8ov3D2D9zd6.*"modsecurity.conf-recommended"|ModSecurity was not compiled with ssdeep support./, 1],
debug => [ qr/Access denied with code 403 \(phase 2\)\. Fuzzy hash of REQUEST_BODY matched with 96:MbQ1L0LDX8GPI8ov3D2D9zd6.*"modsecurity.conf-recommended"/, 1], debug => [ qr/Access denied with code 403 \(phase 2\)\. Fuzzy hash of REQUEST_BODY matched with 96:MbQ1L0LDX8GPI8ov3D2D9zd6.*"modsecurity.conf-recommended"|ModSecurity was not compiled with ssdeep support./, 1],
}, },
match_response => { match_response => {
status => qr/^403$/, status => qr/^403|200$/,
}, },
request => new HTTP::Request( request => new HTTP::Request(
POST => "http://$ENV{SERVER_NAME}:$ENV{SERVER_PORT}/index.html", POST => "http://$ENV{SERVER_NAME}:$ENV{SERVER_PORT}/index.html",