Vulnerability Details : CVE-2021-20199
Potential exploit
Rootless containers run with Podman, receive all traffic with a source IP address of 127.0.0.1 (including from remote hosts). This impacts containerized applications that trust localhost (127.0.01) connections by default and do not require authentication. This issue affects Podman 1.8.0 onwards.
Products affected by CVE-2021-20199
- cpe:2.3:a:podman_project:podman:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20199
0.45%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 61 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20199
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2021-20199
-
The product does not properly verify that the source of data or communication is valid.Assigned by: secalert@redhat.com (Primary)
References for CVE-2021-20199
-
https://github.com/rootless-containers/rootlesskit/pull/206
port: add ChildIP by giuseppe · Pull Request #206 · rootless-containers/rootlesskit · GitHubPatch;Third Party Advisory
-
https://github.com/containers/podman/pull/9052
rootlessport: set source IP to slirp4netns device by giuseppe · Pull Request #9052 · containers/podman · GitHubPatch;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1919050
1919050 – (CVE-2021-20199) CVE-2021-20199 podman: Remote traffic to rootless containers is seen as orginating from localhostIssue Tracking;Third Party Advisory
-
https://github.com/containers/podman/issues/5138
Source IP always 127.0.0.1 in rootless Podman 1.8.0 · Issue #5138 · containers/podman · GitHubExploit;Third Party Advisory
Jump to