5.9
MEDIUM
CVE-2021-20199
"Podman Localhost Privilege Escalation Vulnerability"
Description

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.

INFO

Published Date :

Feb. 2, 2021, 7:15 p.m.

Last Modified :

Nov. 21, 2024, 5:46 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2021-20199 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Podman_project podman
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-20199.

URL Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1919050 Issue Tracking Third Party Advisory
https://github.com/containers/podman/issues/5138 Exploit Third Party Advisory
https://github.com/containers/podman/pull/9052 Patch Third Party Advisory
https://github.com/rootless-containers/rootlesskit/pull/206 Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1919050 Issue Tracking Third Party Advisory
https://github.com/containers/podman/issues/5138 Exploit Third Party Advisory
https://github.com/containers/podman/pull/9052 Patch Third Party Advisory
https://github.com/rootless-containers/rootlesskit/pull/206 Patch Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-20199 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-20199 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1919050
    Added Reference https://github.com/containers/podman/issues/5138
    Added Reference https://github.com/containers/podman/pull/9052
    Added Reference https://github.com/rootless-containers/rootlesskit/pull/206
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Feb. 26, 2021

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
  • Initial Analysis by [email protected]

    Feb. 08, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1919050 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1919050 Issue Tracking, Third Party Advisory
    Changed Reference Type https://github.com/containers/podman/issues/5138 No Types Assigned https://github.com/containers/podman/issues/5138 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/containers/podman/pull/9052 No Types Assigned https://github.com/containers/podman/pull/9052 Patch, Third Party Advisory
    Changed Reference Type https://github.com/rootless-containers/rootlesskit/pull/206 No Types Assigned https://github.com/rootless-containers/rootlesskit/pull/206 Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:podman_project:podman:*:*:*:*:*:*:*:* versions from (including) 1.8.0 up to (excluding) 3.0.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-20199 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-20199 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.15 }} -0.00%

score

0.52162

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability