Vulnerability Details : CVE-2021-20188
A flaw was found in podman before 1.7.0. File permissions for non-root users running in a privileged container are not correctly checked. This flaw can be abused by a low-privileged user inside the container to access any other file in the container, even if owned by the root user inside the container. It does not allow to directly escape the container, though being a privileged container means that a lot of security features are disabled when running the container. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Products affected by CVE-2021-20188
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
- cpe:2.3:a:podman_project:podman:*:*:*:*:*:*:*:*
Threat overview for CVE-2021-20188
Top countries where our scanners detected CVE-2021-20188
Top open port discovered on systems with this issue
53
IPs affected by CVE-2021-20188 693,251
Threat actors abusing to this issue?
Yes
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affected by CVE-2021-20188!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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Exploit prediction scoring system (EPSS) score for CVE-2021-20188
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20188
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST |
CWE ids for CVE-2021-20188
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by: secalert@redhat.com (Primary)
References for CVE-2021-20188
-
https://bugzilla.redhat.com/show_bug.cgi?id=1915734
1915734 – (CVE-2021-20188) CVE-2021-20188 podman: container users permissions are not respected in privileged containersIssue Tracking;Patch;Vendor Advisory
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