cve-2025-6019
Vulnerability from cvelistv5
Published
2025-06-19 11:55
Modified
2025-06-24 03:55
Severity ?
EPSS score ?
Summary
Libblockdev: lpe from allow_active to root in libblockdev via udisks
References
Impacted products
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Generally, the \\\"allow_active\\\" setting in Polkit permits a physically present user to take certain actions based on the session type. Due to the way libblockdev interacts with the udisks daemon, an \\\"allow_active\\\" user on a system may be able escalate to full root privileges on the target host. Normally, udisks mounts user-provided filesystem images with security flags like nosuid and nodev to prevent privilege escalation. However, a local attacker can create a specially crafted XFS image containing a SUID-root shell, then trick udisks into resizing it. This mounts their malicious filesystem with root privileges, allowing them to execute their SUID-root shell and gain complete control of the system.\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 una vulnerabilidad de Escalada de Privilegios Locales (LPE) en libblockdev. Generalmente, la configuraci\u00f3n \\\"allow_active\\\" de Polkit permite a un usuario f\u00edsicamente presente realizar ciertas acciones seg\u00fan el tipo de sesi\u00f3n. Debido a la forma en que libblockdev interact\u00faa con el daemon udisks, un usuario \\\"allow_active\\\" en un sistema puede escalar a privilegios de root completos en el host objetivo. Normalmente, udisks monta im\u00e1genes del sistema de archivos proporcionadas por el usuario con indicadores de seguridad como nosuid y nodev para evitar la escalada de privilegios. Sin embargo, un atacante local puede crear una imagen XFS especialmente manipulada que contenga un shell SUID-root y luego enga\u00f1ar a udisks para que la redimensione. Esto monta su sistema de archivos malicioso con privilegios de root, lo que le permite ejecutar su shell SUID-root y obtener el control total del sistema.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-250\"}]}],\"references\":[{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9320\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9321\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9322\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9323\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9324\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9325\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9326\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9327\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2025:9328\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2025-6019\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2370051\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://cdn2.qualys.com/2025/06/17/suse15-pam-udisks-lpe.txt\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2025/06/17/5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2025/06/17/6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2025/06/18/1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/06/msg00018.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://news.ycombinator.com/item?id=44325861\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.bleepingcomputer.com/news/linux/new-linux-udisks-flaw-lets-attackers-get-root-on-major-linux-distros/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.