6.4Orta
CVE-2025-57848Container-native-virtualization: privilege escalation via excessive /etc/passwd permissions
Açıklama
A container privilege escalation flaw was found in certain Container-native Virtualization images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.
Zayıflık türü (CWE):
CWE-276
Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.
Etkilenen ürünler ve sürümler
| Üretici | Ürün | Sürümler | |
|---|---|---|---|
| container native virtualization | 4.12 | — | |
| container native virtualization | 4.14 | — | |
| container native virtualization | 4.16 | — | |
| container native virtualization | 4.17 | — | |
| container native virtualization | 4.18 | — | |
| container native virtualization | 4.19 | — | |
| Red Hat | RHEL-8-CNV-4.12 | all versions | |
| Red Hat | RHEL-9-CNV-4.14 | all versions |
Kaynaklar ve yamalar
- RHEA-2025:19904 vendor-advisory
- RHEA-2025:20007 vendor-advisory
- RHEA-2025:21119 vendor-advisory
- RHEA-2025:21677 vendor-advisory
- RHEA-2025:22750 vendor-advisory
- RHEA-2026:0511 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-57848 vdb-entry
- RHBZ#2391099 issue-tracking