Razorpay IFSC Ruby gem through 2.0.62 contains a server-side request forgery vulnerability that allows attackers to redirect API requests by supplying a crafted IFSC code to IFSC.find or IFSC#get. Attackers can submit network-path references or absolute URIs that URI.join resolves as a new host, sending GET requests to internal or attacker-chosen hosts and returning parsed response fields.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/razorpay/ifsc
disclosure@vulncheck.com
https://github.com/razorpay/ifsc/blob/v2.0.62/src/ruby/ifsc.rb#L53-L58
disclosure@vulncheck.com
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/rJYWKMsiMg
disclosure@vulncheck.com
https://rubygems.org/gems/ifsc
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/razorpay-ifsc-ruby-gem-through-2.0.62-ssrf…
disclosure@vulncheck.com