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Title: ====== Cells Blog CMS v1.1 - Multiple Web Vulnerabilites Date: ===== 2012-06-05 References: =========== http://www.vulnerability-lab.com/get_content.php?id=591 VL-ID: ===== 591 Common Vulnerability Scoring System: ==================================== 8.3 Introduction: ============= Cells-blog is a free but powerful mini-blog system. It can run on any web server that can excute PHP script codes. It comes alone with the SQLite data base so you can copy and play without any installation. Any question please first check to the FAQ in the Cells official web site. If you still have question, you can contact with system manager or leave a message in our official webite www.cells.tw (Copy of the Vendor Homepage: http://www.cells.tw ) Abstract: ========= The Vulnerability Laboratory Research Team discovered multiple different web vulnerabilites in Cells Blog v1.1 Content Management System. Report-Timeline: ================ 2012-06-05: Public or Non-Public Disclosure Status: ======== Published Exploitation-Technique: ======================= Remote Severity: ========= Critical Details: ======== 1.1 Multiple SQL Injection vulnerabilities are detected in the Cells Blog v1.1 Content Management System. The vulnerability allows an attacker (remote) or local low privileged user account to inject/execute own sql commands on the affected application dbms without user inter action. Successful exploitation of the vulnerability results in dbms & application compromise. The sql injection vulnerabilities are located in multiple files in the main menu and the bound parameters bgid, ptid, fmid & id ... Vulnerable File(s): [+] adm_bgsetting.php [+] adm_editforum.php [+] adm_editpost.php [+] album.php [+] blog.php [+] fourm.php [+] func/adm_updateblog.php [+] func/adm_updateinfo.php [+] func/del_cover.php [+] func/del_msg.php [+] head.php [+] open_attach.php [+] one_blog.php [+] open_bgalbum.php [+] open_bgfourm.php [+] open_bgpics.php [+] pub_listrmsg.php [+] pub_listsmsg.php [+] pub_nlink.php [+] pub_nmsg.php [+] pub_post.php [+] pub_pubmsg.php [+] pub_readpost.php [+] pub_upload.php Vulnerable Parameter(s): [+] bgid [+] ptid [+] fmid [+] id 1.2 Multiple persistent input validation vulnerabilities are detected in the Cells Blog v1.1 Content Management System. The bugs allow remote attackers to implement/inject malicious script code on the application side (persistent). Successful exploitation of the vulnerability can lead to session hijacking (manager/admin) or stable (persistent) context manipulation. Exploitation requires low user inter action or low privileged application user account. The bugs are located in the add, save & update input fields. The code is getting executed on the specific listing page of after adding via module. If the attacker for example include persistent script code in the album name the context will be executed out of the album listing page. Vulnerable File(s): [+] func/add_album.php [+] func/add_fourm.php [+] func/add_link.php [+] func/add_mynpost.php [+] func/add_post.php [+] func/add_rpost.php [+] func/add_user.php [+] func/adm_updateinfo.php [+] func/save_post.php [+] func/update_myinfo.php [+] func/update_post.php Proof of Concept: ================= 1.1 Multiple SQL Injection vulnerabilities are detected in the Cells Blog v1.1 Content Management System. The vulnerability allows an attacker (remote) or local low privileged user account to inject/execute own sql commands on the affected application dbms without user inter action. Successful exploitation of the vulnerability results in dbms & application compromise. The sql injection vulnerabilities are located in multiple files in the main menu and the bound parameters bgid, ptid, fmid & id ... 1.1 The sql injection vulnerability can be exploited by remote attackers without user inter action. For demonstration or reproduce ... PoC: http://127.0.0.1:1338/cells/fourm.php?bgid=-1 union select [SQL-INJECTION]-- http://127.0.0.1:1338/cells/fourm.php?bgid=1&fmid=-1 union select [SQL-INJECTION]-- http://127.0.0.1:1338/cells/pub_readpost.php?bgid=1&ptid=-1 union select [SQL-INJECTION]-- http://127.0.0.1:1338/cells/pub_readpost.php?bgid=-1 union select [SQL-INJECTION]-- http://127.0.0.1:1338/cells/pub_nmsg.php?report=pst&bgid=1&fmid=8&ptid=-1 union select [SQL-INJECTION]-- http://127.0.0.1:1338/cells/pub_openpic.php?fnid=10&bgid=1&fmid=-1 union select [SQL-INJECTION]-- http://127.0.0.1:1338/cells/my_newpost.php?fmid=-1 union select [SQL-INJECTION]-- 1.2 The persistent input validation vulnerabilities can be exploited by local low privileged user account with low required user inter action. For demonstration or reproduce ... The vulnerability can be reproduce by injecting your own persistent script code in the update link field, add name field or url save input field. The persistent code will be executed (persistent) out of the listing context of the vulnerable module. Risk: ===== 1.1 The security risk of the sql injection vulnerabilities are estimated as critical. 1.2 The security risk of the persistent input validation vulnerabilities are estiamted as medium(+) Credits: ======== Vulnerability Laboratory [Research Team] - snup (firstname.lastname@example.org [http://snup1.blogspot.com] Disclaimer: =========== The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability- Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. 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