Описание
imgproxy is vulnerable to SSRF against 0.0.0.0
Summary
Imgproxy does not block the 0.0.0.0 address, even with IMGPROXY_ALLOW_LOOPBACK_SOURCE_ADDRESSES set to false. This can expose services on the local host.
Details
imgproxy protects against SSRF against a loopback address with the following check (source):
This check is insufficient to prevent accessing services on the local host, as services may receive traffic on 0.0.0.0. Go's IsLoopback (source) strictly follows the definition of loopback IPs beginning with 127. 0.0.0.0 is not blocked.
Пакеты
github.com/imgproxy/imgproxy
< 3.27.2
3.27.2
Связанные уязвимости
imgproxy is server for resizing, processing, and converting images. Imgproxy does not block the 0.0.0.0 address, even with IMGPROXY_ALLOW_LOOPBACK_SOURCE_ADDRESSES set to false. This can expose services on the local host. This vulnerability is fixed in 3.27.2.
