Skip to main content

Server-Side Request Forgery (SSRF)

CVE-2022-27780

High
7.5/10

Summary

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL using the wrong host name when it is later retrieved. For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed by the parser and get transposed into `http://example.com/127.0.0.1/`. This flaw can be used to circumvent filters, checks and more. This issue affects versions 7.80.0 through 7.83.0.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • NONE

CWE-918 - Server-Side Request Forgery (SSRF)

Server-side request forgery (SSRF) is a weakness that allows an attacker to send an arbitrary request, making it appear that the request was sent by the server. This request may bypass a firewall that would normally prevent direct access to the URL. The impact of this vulnerability can vary from unauthorized access to files and sensitive information to remote code execution.

References

Advisory Timeline

  • Published