Vulnerability Name:

CVE-2021-4024 (CCN-216057)

Assigned:2021-11-24
Published:2021-11-24
Updated:2022-03-01
Summary:A flaw was found in podman. The `podman machine` function (used to create and manage Podman virtual machine containing a Podman process) spawns a `gvproxy` process on the host system. The `gvproxy` API is accessible on port 7777 on all IP addresses on the host. If that port is open on the host's firewall, an attacker can potentially use the `gvproxy` API to forward ports on the host to ports in the VM, making private services on the VM accessible to the network. This issue could be also used to interrupt the host's services by forwarding all ports to the VM.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): Low
4.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)
4.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): Low
4.8 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)
4.2 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.4 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-200
CWE-346
CWE-200
CWE-346
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-4024

Source: CCN
Type: Red Hat Bugzilla – Bug 2026675
(CVE-2021-4024) - CVE-2021-4024 podman: podman machine spawns gvproxy with port bound to all IPs

Source: MISC
Type: Broken Link, Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2026675,

Source: XF
Type: UNKNOWN
podman-cve20214024-info-disc(216057)

Source: CCN
Type: podman GIT Repository
v3.4.3

Source: MISC
Type: Release Notes, Third Party Advisory
https://github.com/containers/podman/releases/tag/v3.4.3

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-6bd024d2a7

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-4024

Vulnerable Configuration:Configuration 1:
  • cpe:/a:podman_project:podman:*:*:*:*:*:*:*:* (Version >= 3.3.0 and < 3.4.3)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:9:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:9::appstream:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7862
    P
    		podman-4.4.4-150500.1.4 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:51990
    P
    		Security update for podman (Important)
    2023-01-27
    oval:com.redhat.rhsa:def:20227954
    P
    		RHSA-2022:7954: podman security and bug fix update (Moderate)
    2022-11-15
    oval:org.opensuse.security:def:3247
    P
    		libraptor2-0-2.0.10-3.63 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94877
    P
    		podman-3.4.4-150400.2.14 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:98958
    P
    		Security update for conmon, libcontainers-common, libseccomp, podman (Moderate)
    2022-03-04
    oval:org.opensuse.security:def:42308
    P
    		Security update for conmon, libcontainers-common, libseccomp, podman (Moderate)
    2022-02-25
    oval:org.opensuse.security:def:923
    P
    		Security update for conmon, libcontainers-common, libseccomp, podman (Moderate)
    2022-02-25
    oval:org.opensuse.security:def:994
    P
    		Security update for conmon, libcontainers-common, libseccomp, podman (Moderate)
    2022-02-25
    oval:org.opensuse.security:def:101615
    P
    		Security update for conmon, libcontainers-common, libseccomp, podman (Moderate)
    2022-02-25
    oval:org.opensuse.security:def:101684
    P
    		Security update for conmon, libcontainers-common, libseccomp, podman (Moderate)
    2022-02-25
    oval:org.opensuse.security:def:113151
    P
    		podman-3.4.4-1.1 on GA media (Moderate)
    2022-01-17
    BACK
    podman_project podman *
    fedoraproject fedora 34
    fedoraproject fedora 35
    redhat enterprise linux 8.0