CVE-2025-57848— Container-native-virtualization: privilege escalation via excessive /etc/passwd permissions
Quick assessment
Affected
Red Hat RHEL-8-CNV-4.12
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Red Hat OpenShift Virtualization 4是美国红帽（Red Hat）公司的一个虚拟机管理组件。 Red Hat OpenShift Virtualization 4存在安全漏洞，该漏洞源于Container-native Virtualization组件中/etc/passwd文件在构建时被设置为组可写权限，可能导致权限提升。
Possible ATT&CK Techniques 3 AI
T1078 · Valid Accounts T1548.003 · Sudo and Sudo Caching T1136.003 · Cloud AccountAffected Version Matrix 250
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat OpenShift Virtualization 4 | any |
affected |
any |
affected | ||
any |
affected | ||
any |
affected | ||
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4< * |
unaffected |
v4.12.21-4< * |
unaffected | ||
v4.12.21-4< * |
unaffected | ||
v4.12.21-3< * |
unaffected | ||
v4.12.21-21< * |
unaffected | ||
v4.12.21-4< * |
unaffected | ||
v4.12.21-4< * |
unaffected | ||
v4.12.21-4< * |
unaffected | ||
| … +35 more rows | |||
| Red Hat | RHEL-9-CNV-4.14 | v4.14.16-6< * |
unaffected |
v4.14.16-8< * |
unaffected | ||
v4.14.16-6< * |
unaffected | ||
v4.14.16-3< * |
unaffected | ||
v4.14.16.rhel9-46< * |
unaffected | ||
v4.14.16-6< * |
unaffected | ||
v4.14.16-6< * |
unaffected | ||
v4.14.16-6< * |
unaffected | ||
| … +36 more rows | |||
| Red Hat | RHEL-9-CNV-4.17 | v4.17.34-1< * |
unaffected |
v4.17.34-1< * |
unaffected | ||
v4.17.34-1< * |
unaffected | ||
v4.17.34-1< * |
unaffected | ||
v4.17.34-1< * |
unaffected | ||
v4.17.34-1< * |
unaffected | ||
v4.17.34-1< * |
unaffected | ||
v4.17.34.rhel9-16< * |
unaffected | ||
| … +44 more rows | |||
| Red Hat | RHEL-9-CNV-4.18 | v4.18.22-1< * |
unaffected |
v4.18.22-1< * |
unaffected | ||
v4.18.22-1< * |
unaffected | ||
v4.18.22-1< * |
unaffected | ||
v4.18.22-1< * |
unaffected | ||
v4.18.22-1< * |
unaffected | ||
v4.18.22-1< * |
unaffected | ||
v4.18.22.rhel9-8< * |
unaffected | ||
| … +45 more rows | |||
| Red Hat | RHEL-9-CNV-4.19 | v4.19.14-1< * |
unaffected |
v4.19.14-1< * |
unaffected | ||
v4.19.14-1< * |
unaffected | ||
v4.19.14-1< * |
unaffected | ||
v4.19.14-1< * |
unaffected | ||
v4.19.14-1< * |
unaffected | ||
v4.19.14-1< * |
unaffected | ||
v4.19.14.rhel9-6< * |
unaffected | ||
| … +46 more rows | |||
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I. Basic Information for CVE-2025-57848
Vulnerability Information
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Vulnerability Title
Container-native-virtualization: privilege escalation via excessive /etc/passwd permissions
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat OpenShift Virtualization 4 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat OpenShift Virtualization 4是美国红帽（Red Hat）公司的一个虚拟机管理组件。 Red Hat OpenShift Virtualization 4存在安全漏洞，该漏洞源于Container-native Virtualization组件中/etc/passwd文件在构建时被设置为组可写权限，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-3 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-21 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-5 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-5 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-5 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-9 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-9 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-8 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-8 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-8 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
| Red Hat | RHEL-8-CNV-4.12 | v4.12.21-4 ~ * |
cpe:/a:redhat:container_native_virtualization:4.12::el8
|
|
II. Public POCs for CVE-2025-57848
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2025-57848 (5)
-
🔗 RHEA-2026:0511 - Product Enhancement Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
-
🔗 RHEA-2025:22750 - Product Enhancement Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
-
🔗 RHEA-2025:19904 - Product Enhancement Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
-
🔗 RHEA-2025:21119 - Product Enhancement Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
-
🔗 RHEA-2025:21677 - Product Enhancement Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
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V. Comments for CVE-2025-57848
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