7.7
HIGH CVSS 3.1
CVE-2022-21682
Flatpak Path Traversal Vulnerability
Description

Flatpak is a Linux application sandboxing and distribution framework. A path traversal vulnerability affects versions of Flatpak prior to 1.12.3 and 1.10.6. flatpak-builder applies `finish-args` last in the build. At this point the build directory will have the full access that is specified in the manifest, so running `flatpak build` against it will gain those permissions. Normally this will not be done, so this is not problem. However, if `--mirror-screenshots-url` is specified, then flatpak-builder will launch `flatpak build --nofilesystem=host appstream-utils mirror-screenshots` after finalization, which can lead to issues even with the `--nofilesystem=host` protection. In normal use, the only issue is that these empty directories can be created wherever the user has write permissions. However, a malicious application could replace the `appstream-util` binary and potentially do something more hostile. This has been resolved in Flatpak 1.12.3 and 1.10.6 by changing the behaviour of `--nofilesystem=home` and `--nofilesystem=host`.

INFO

Published Date :

Jan. 13, 2022, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 6:45 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2022-21682 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 Flatpak flatpak
2 Flatpak flatpak-builder
1 Redhat enterprise_linux
1 Fedoraproject fedora
1 Debian debian_linux
: Total Affected Vendor : 4 | Products : 5
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 3.1 MEDIUM [email protected]
Solution
Follow the instructions below to mitigate the CVE-2022-21682 vulnerability.
Update the affected flatpak-builder, flatpak-builder-debuginfo and / or flatpak-builder-debugsource packages.
Public PoC/Exploit Available at Github

CVE-2022-21682 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

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-2022-21682.

URL Resource
https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a Patch Third Party Advisory
https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa Patch Third Party Advisory
https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/
https://security.gentoo.org/glsa/202312-12
https://www.debian.org/security/2022/dsa-5049 Third Party Advisory
https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a Patch Third Party Advisory
https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa Patch Third Party Advisory
https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/
https://security.gentoo.org/glsa/202312-12
https://www.debian.org/security/2022/dsa-5049 Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-21682 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-2022-21682 weaknesses.

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).

Profile Photo
AlphabugX/CVE-2022-RCE

test 反向辣鸡数据投放 CVE-2022-23305 工具 利用 教程 Exploit POC

cve-2020-

Updated: 7 months, 2 weeks ago
5 stars 3 fork 3 watcher
Born at : Jan. 21, 2022, 5:07 a.m. This repo has been linked 2650 different CVEs too.
Profile Photo
Karneades/awesome-vulnerabilities

Collection of awesome vulnerabilities

Updated: 2 years, 5 months ago
2 stars 0 fork 0 watcher
Born at : May 16, 2020, 11:10 a.m. This repo has been linked 5 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-2022-21682 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-21682 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://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a
    Added Reference https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa
    Added Reference https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/
    Added Reference https://security.gentoo.org/glsa/202312-12
    Added Reference https://www.debian.org/security/2022/dsa-5049
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Dec. 23, 2023

    Action Type Old Value New Value
    Added Reference GitHub, Inc. https://security.gentoo.org/glsa/202312-12 [No types assigned]
  • 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/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ [No types assigned]
    Added Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/ [No types assigned]
    Removed Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/
    Removed Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/
  • Modified Analysis by [email protected]

    Feb. 10, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/ Mailing List, Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2022/dsa-5049 No Types Assigned https://www.debian.org/security/2022/dsa-5049 Third Party Advisory
  • CVE Modified by [email protected]

    Jan. 26, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 25, 2022

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2022/dsa-5049 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 24, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a No Types Assigned https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a Patch, Third Party Advisory
    Changed Reference Type https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa No Types Assigned https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa Patch, Third Party Advisory
    Changed Reference Type https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx No Types Assigned https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx Patch, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ Third Party Advisory
    Added CWE NIST CWE-22
    Added CPE Configuration OR *cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* versions up to (excluding) 1.10.7 *cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* versions from (including) 1.11.1 up to (excluding) 1.12.4 *cpe:2.3:a:flatpak:flatpak-builder:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.2
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 17, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ [No Types Assigned]
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.
Vulnerability Scoring Details
Base CVSS Score: 7.7
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.32 }} 0.04%

score

0.54867

percentile