OAuth2 authorization codes are valid indefinetly in Nextcloud server
8Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 3epss 0.5%
probabilidade de exploração
0.5%top 63% das CVEs
exploração observada
nãonenhuma fonte reporta
Nextcloud server is a self hosted personal cloud system. In affected versions OAuth codes did not expire. When an attacker would get access to an authorization code they could authenticate at any time using the code. As of version 28.0.0 OAuth codes are invalidated after 10 minutes and will no longer be authenticated. To exploit this vulnerability an attacker would need to intercept an OAuth code from a user session. It is recommended that the Nextcloud Server is upgraded to 28.0.0. There are no known workarounds for this vulnerability.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N
Produtos afetados
nextcloud · security-advisoriesReferências
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wppc-f5g8-vx36https://github.com/nextcloud/server/pull/40766https://hackerone.com/reports/1784162https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S6PN4GVJ5TZUC6WSG4X3ZA3AMPBEKNAX/