CVE-2023-28848

CSRF protection on user_oidc login returned the expected token in case of an error

CVSS 4.8 MEDIUMEPSS 0.3%CWE-352

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 4.8EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

04 abr 2023Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

user_oidc is the OIDC connect user backend for Nextcloud, an open source collaboration platform. A vulnerability in versions 1.0.0 until 1.3.0 effectively allowed an attacker to bypass the state protection as they could just copy the expected state token from the first request to their second request. Users should upgrade user_oidc to 1.3.0 to receive a patch for the issue. No known workarounds are available.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Produtos afetados

nextcloud · security-advisories

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Referências

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xw32-wf7f https://github.com/nextcloud/user_oidc/pull/580 https://hackerone.com/reports/1878381