{"id":439,"date":"2024-10-16T22:16:24","date_gmt":"2024-10-16T20:16:24","guid":{"rendered":"https:\/\/bergee.it\/blog\/?p=439"},"modified":"2024-10-16T23:24:51","modified_gmt":"2024-10-16T21:24:51","slug":"accessing-admin-panel-with-fuzzing-digging-and-guessing","status":"publish","type":"post","link":"https:\/\/bergee.it\/blog\/accessing-admin-panel-with-fuzzing-digging-and-guessing\/","title":{"rendered":"Accessing admin panel with fuzzing, digging and guessing"},"content":{"rendered":"

Hello folks<\/p>\n

This time I want to tell you the story how I gained access to some admin functionalities\u00a0 and leaked some sensitive info using FUFF, Burp, my eyes, and brain :).<\/p>\n

Fuzzing<\/h3>\n

Let’s call the target “redacted.com”. I started fuzzing the target with FUFF and found an \/admin<\/em> endpoint<\/p>\n

https:\/\/redacted.com\/app\/admin<\/p><\/blockquote>\n

which displayed: “Sorry you’re not authorized to access the page” when entering the site.\u00a0 I moved on to testing other parts of an application. Later, I read Sam Curry’s article on Starbucks hacking by attacking secondary contexts :<\/p>\n

https:\/\/samcurry.net\/hacking-starbucks<\/a><\/p>\n

I recommend reading it. I entered this site again and logged all the requests. But nothing was interesting besides the endpoint which gave me 403 response in burp.\u00a0 I tried playing with this endpoint as in the the article, but I quickly realized this is not the case. However, if I appended anything after the \/admin\/ such as:<\/p>\n

https:\/\/redacted.com\/app\/admin\/xxx<\/p><\/blockquote>\n

I’ve got 404 response, so… BINGO. It should be 403, isn’t it?.<\/p>\n

More fuzzing<\/h3>\n

I started the FUFF again and in a minute I found the \/orders<\/em> endpoint:<\/p>\n

https:\/\/redacted.com\/app\/admin\/orders<\/p><\/blockquote>\n

which returned a code with order IDs and numbers. Ok if we have some list of orders, now there must be an endpoint to view the order details.\u00a0 I tried to look for it somewhere in JavaScript files, with no luck, though. As I was already familiar with the app, I tried to guess it. After some trial and errors I guessed both endpoint and parameter name and it was:<\/p>\n

https:\/\/redacted.com\/app\/admin\/orderdetails?orderdid=1<\/p><\/blockquote>\n

I could view the details of the first order in the system.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

Digging in js files<\/h3>\n

So far so good. I could report it, but if I found these two endpoints, there must be more of them. I tried to fuzz this admin endpoint some more with FUFF\u00a0 using different lists but with no luck :(. Next day with fresh mind I decided to dive into javascript files by hand. I clicked around the app , logging the requests in burp and then looking through the js files. After a while\u00a0 I found some big chunks of commented out js code. And there where some endpoints I’ve never seen before using that app. I thought that these might be some admin endpoints as they started with: delete, remove, publish, unpublish words.\u00a0 It was some kind of e-learning app, so let’s assume these endpoins were like:<\/p>\n

https:\/\/redacted.com\/app\/admin\/deleteCourse<\/p>\n

https:\/\/redacted.com\/app\/admin\/removeCourse<\/p>\n

https:\/\/redacted.com\/app\/admin\/unpublishCourse<\/p>\n

https:\/\/redacted.com\/app\/admin\/publishCourse<\/p><\/blockquote>\n

Reading js files and ajax requests I could easily construct the proper requests as I had the endpoints, the methods and the parameters.<\/p>\n

The POC<\/h3>\n

The hard part was to create the POC not damaging any data in the app. As I could not create my own course, I decided to find the endpoint which gets the course id and then based on the responses, find the one that does not exist. That was pretty easy , just using the app and logging the requests. Then I used this course id in the endpoints mentioned above. If The status code returned 200, that was the proof the endpoints were not properly secured. After some digging I found some more enpoints. I reported all the finding and was rewarded a nice bounty.<\/p>\n

 <\/p>\n

Reward : 2000 USD<\/p>\n

See you next bug<\/p>\n","protected":false},"excerpt":{"rendered":"

Hello folks This time I want to tell you the story how I gained access to some admin functionalities\u00a0 and leaked some sensitive info using FUFF, Burp, my eyes, and brain :). Fuzzing Let’s call the target “redacted.com”. I started fuzzing the target with FUFF and found an \/admin endpoint https:\/\/redacted.com\/app\/admin which displayed: “Sorry you’re…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,32,29],"tags":[],"class_list":["post-439","post","type-post","status-publish","format-standard","hentry","category-bez-kategorii","category-bug-bounty","category-write-up"],"yoast_head":"\nAccessing admin panel with fuzzing, digging and guessing - Bergee's Stories on Bug Hunting<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bergee.it\/blog\/accessing-admin-panel-with-fuzzing-digging-and-guessing\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Accessing admin panel with fuzzing, digging and guessing - Bergee's Stories on Bug Hunting\" \/>\n<meta property=\"og:description\" content=\"Hello folks This time I want to tell you the story how I gained access to some admin functionalities\u00a0 and leaked some sensitive info using FUFF, Burp, my eyes, and brain :). 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