PT-2019-4546 · Mozilla+2 · Firefox+2
Vinothkumar Nagasayanan
+1
·
Publicado
2019-03-19
·
Atualizado
2024-12-12
·
CVE-2019-9803
CVSS v3.1
7.4
Alta
| Vetor | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 66
Description
The issue is related to the Upgrade-Insecure-Requests (UIR) specification and Content Security Policy (CSP) in Firefox. When UIR is enabled through CSP, Firefox should upgrade navigation to a same-origin URL to HTTPS. However, in some cases, Firefox incorrectly navigates to an HTTP URL instead of performing the security upgrade, potentially allowing man-in-the-middle attacks on linked resources. This could allow a remote attacker to access and compromise confidential data.
Recommendations
For versions prior to 66, update to version 66 or later to resolve the issue. As a temporary workaround, consider disabling the UIR feature through CSP until a patch is available. Restrict access to sensitive data and resources to minimize the risk of exploitation.
Correção
Origin Validation Error
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Firefox
Ubuntu