6.3
MEDIUM
CVE-2021-41089
Docker Engine File Permission Escalation Vulnerability
Description

Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container can result in Unix file permission changes for existing files in the host’s filesystem, widening access to others. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers do not need to be restarted.

INFO

Published Date :

Oct. 4, 2021, 9:15 p.m.

Last Modified :

Nov. 7, 2023, 3:38 a.m.

Remotely Exploitable :

No

Impact Score :

3.7

Exploitability Score :

2.0
Public PoC/Exploit Available at Github

CVE-2021-41089 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-41089 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 Fedoraproject fedora
1 Mobyproject moby

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).

None

Updated: 1 year, 6 months ago
1 stars 0 fork 0 watcher
Born at : June 26, 2021, 7:56 a.m. This repo has been linked 7 different CVEs too.

The vulnerabilities i've found

Updated: 1 year, 5 months ago
1 stars 0 fork 0 watcher
Born at : May 5, 2021, 8:59 a.m. This repo has been linked 4 different CVEs too.

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

The following list is the news that have been mention CVE-2021-41089 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-41089 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 [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/ [No types assigned]
    Added Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/ [No types assigned]
    Removed Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/
    Removed Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/
  • CVE Modified by [email protected]

    Jun. 14, 2022

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf [No Types Assigned]
  • Modified Analysis by [email protected]

    Nov. 28, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/ Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 17, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/ [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 10, 2021

    Action Type Old Value New Value
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 30, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 19, 2021

    Action Type Old Value New Value
    Changed Description Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container can result in Unix file permission changes for existing files in the host’s filesystem, widening access to others. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers do not need to be restarted. Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container can result in Unix file permission changes for existing files in the host’s filesystem, widening access to others. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers do not need to be restarted.
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 07, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
    Changed Reference Type https://github.com/moby/moby/commit/bce32e5c93be4caf1a592582155b9cb837fc129a No Types Assigned https://github.com/moby/moby/commit/bce32e5c93be4caf1a592582155b9cb837fc129a Patch, Third Party Advisory
    Changed Reference Type https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4 No Types Assigned https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4 Third Party Advisory
    Added CWE NIST CWE-281
    Added CPE Configuration OR *cpe:2.3:a:mobyproject:moby:*:*:*:*:*:*:*:* versions up to (excluding) 20.10.9
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-2021-41089 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-2021-41089 weaknesses.

Exploit Prediction

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

0.05 }} 0.00%

score

0.14464

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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