Vulnerability in SPIP

[ Description ]Official description

SPIP before 4.4.18 contains a server-side request forgery vulnerability in recuperer_url() in ecrire/inc/distant.php that follows up to 10 redirects without re-validating targets with valider_url_distante(). Authenticated attackers can supply a remote URL, such as a syndicated site feed or remote document, that redirects to internal or link-local addresses including cloud metadata endpoints.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-18.html
• git.spip.net/spip/spip
• www.vulncheck.com/advisories/spip-before-4.4.18-ssrf-via-http-redirects-in-recuperer-url