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Bug #8871

closed

Suricata: input not validated properly in suricata_rulesets.php results in wrong argument passed to in_array()

Added by L H over 6 years ago. Updated about 6 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
09/04/2018
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Affected Version:
Affected Plus Version:
Affected Architecture:

Description

Spotted this today:

Crash report begins.  Anonymous machine information:

amd64
11.2-RELEASE-p2
FreeBSD 11.2-RELEASE-p2 #106 b0703dcab3c(RELENG_2_4_4): Sun Sep  2 22:17:18 EDT 2018     root@buildbot3:/builder/crossbuild-ce-master/obj/amd64/FWJoMRHc/builder/crossbuild-ce-master/pfSense/tmp/FreeBSD-src/sys/pfSense

Crash report details:

PHP Errors:
[03-Sep-2018 10:26:58 Etc/UTC] PHP Warning:  in_array() expects parameter 2 to be array, string given in /usr/local/www/suricata/suricata_rulesets.php on line 450

No FreeBSD crash data found.

It will only trigger if the community rules are enabled:

                        <?php elseif (in_array($community_rules_file, $enabled_rulesets_array)): ?>
                                <tr>
                                        <td>
                                                <input type="checkbox" name="toenable[]" value="<?=$community_rules_file;?>" checked="checked"/>
                                        </td>
                                        <td colspan="4">
                                                <?php if ($no_community_files): ?>
                                                        <?php echo gettext("{$msg_community}"); ?>
                                                <?php else: ?>
                                                        <a href='suricata_rules.php?id=<?=$id;?>&openruleset=<?=$community_rules_file;?>'><?php echo gettext("{$msg_community}"); ?></a>
                                                <?php endif; ?>
                                        </td>
                                </tr>
                        <?php else: ?>

Without further inspection, I would guess at some point $enabled_rulesets_array is initialized with information probably stored from user input (I noticed this came up after I added a new rule to my disabled list but could have been there earlier).

Probably not a security risk, but it deserves further analysis as it might indicate a lack of user input validation (you do need to be authenticated and privileged to alter the Suricata configuration).
I don't know if it manifests functionally elsewhere (ex by causing problems).

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