Server-Side Request Forgery (Packet Cloud)
Severity: Critical
Summary #
Netsparker detected a Server-Side Request Forgery based on pattern matching and confirmed the vulnerability using specific Packet Cloud meta-data API requests.
Impact #
Server-Side Request Forgery allows an attacker to make local and/or remote network requests while masquerading as the target server.
Having a Packet Cloud meta-data API endpoint that is accessible through SSRF MAY lead to the exposure of sensitive information regarding the vulnerable machine and may aid an attacker in compromising it.
Remediation #
- Where possible, do not let users specify URLs for outgoing requests issued by your server.
- If you definitely need dynamic URLs, use whitelisting. Make a list of valid, accepted URLs and do not accept other URLs.
- Ensure that you only accept URLs that are located on the trusted domains.
Classifications #
CWE-918, ISO27001-A.14.2.5, OWASP 2013-A5, OWASP 2017-A6
, CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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