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Yelp: X-Forward-For Header allows to bypass access restrictions

🗓️ 19 Oct 2020 12:30:08Reported by parzelType 
hackerone
 hackerone🔗 hackerone.com👁 117 Views

X-Forward-For Header bypasses web app restrictions and grants access to restricted endpoints like "Business Owner App backend API". POCs show successful bypass and server's belief of internal IP access. Impact: Unauthorized resource access by pretending internal IP

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26 Oct 2020 18:22Current
0.9Low risk
Vulners AI Score0.9
web applicationaccess restrictionsbusiness owner appserverinternal ipunauthorized access
117