CVE-2021-32693

Name	CVE-2021-32693
Description	Symfony is a PHP framework for web and console applications and a set of reusable PHP components. A vulnerability related to firewall authentication is in Symfony starting with version 5.3.0 and prior to 5.3.2. When an application defines multiple firewalls, the token authenticated by one of the firewalls was available for all other firewalls. This could be abused when the application defines different providers for each part of the application, in such a situation, a user authenticated on a part of the application could be considered authenticated on the rest of the application. Starting in version 5.3.2, a patch ensures that the authenticated token is only available for the firewall that generates it.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
symfony (PTS)	jessie, jessie (lts)	2.3.21+dfsg-4+deb8u6	fixed
	stretch (security)	2.8.7+dfsg-1.3+deb9u3	fixed
	stretch (lts), stretch	2.8.7+dfsg-1.3+deb9u5	fixed
	buster (security), buster, buster (lts)	3.4.22+dfsg-2+deb10u3	fixed
	bullseye	4.4.19+dfsg-2+deb11u6	fixed
	bookworm	5.4.23+dfsg-1+deb12u2	fixed
	bookworm (security)	5.4.23+dfsg-1+deb12u4	fixed
	sid, trixie	6.4.15+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
symfony	source	(unstable)	(not affected)

Notes

- symfony <not-affected> (Vulnerable code not present)
https://github.com/symfony/symfony/security/advisories/GHSA-rfcf-m67m-jcrq
Fixed by: https://github.com/symfony/symfony/commit/3084764ad82f29dbb025df19978b9cbc3ab34728 (v5.3.2)
https://symfony.com/blog/cve-2021-32693-authentication-granted-to-all-firewalls-instead-of-just-one