Astro is a web framework. In Astro versions 2.16.0 up to but excluding 5.15.5 which utilizeon-demand rendering, request headers `x-forwarded-proto` and `x-forwarded-port` are insecurely used, without sanitization, to build the URL. This has several consequences, the most important of which are: middleware-based protected route bypass (only via `x-forwarded-proto`), DoS via cache poisoning (if a CDN is present), SSRF (only via `x-forwarded-proto`), URL pollution (potential SXSS, if a CDN is present), and WAF bypass.
Version 5.15.5 contains a patch.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Astro Astro
cpe:2.3:a:astro:astro:*:*:*:*:*:node.js:*:*
|
2.16.0
|
5.15.5
|
References 4
https://github.com/withastro/astro/blob/970ac0f51172e1e6bff4440516a851e725ac309…
security-advisories@github.com
https://github.com/withastro/astro/blob/970ac0f51172e1e6bff4440516a851e725ac309…
security-advisories@github.com
https://github.com/withastro/astro/commit/dafbb1ba29912099c4faff1440033edc768af…
security-advisories@github.com
https://github.com/withastro/astro/security/advisories/GHSA-hr2q-hp5q-x767
security-advisories@github.com