4.3
MEDIUM
CVE-2021-4122
"CryptSetup LUKS Header Manipulation Encryption Tampering"
Description

It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium.

INFO

Published Date :

Aug. 24, 2022, 4:15 p.m.

Last Modified :

Aug. 29, 2022, 2:28 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

0.7
Affected Products

The following products are affected by CVE-2021-4122 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 Cryptsetup_project cryptsetup
: Total Affected Vendor : 1 | Products : 1
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-2021-4122.

URL Resource
https://access.redhat.com/security/cve/CVE-2021-4122 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2031859 Permissions Required Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2032401 Issue Tracking Third Party Advisory
https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c Patch Third Party Advisory
https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes Release Notes Vendor 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-2021-4122 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-4122 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
  • Initial Analysis by [email protected]

    Aug. 29, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-4122 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-4122 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2031859 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2031859 Permissions Required, Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2032401 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2032401 Issue Tracking, Third Party Advisory
    Changed Reference Type https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c No Types Assigned https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c Patch, Third Party Advisory
    Changed Reference Type https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes No Types Assigned https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes Release Notes, Vendor Advisory
    Added CWE NIST CWE-345
    Added CPE Configuration OR *cpe:2.3:a:cryptsetup_project:cryptsetup:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.7 *cpe:2.3:a:cryptsetup_project:cryptsetup:*:*:*:*:*:*:*:* versions from (including) 2.4.0 up to (excluding) 2.4.3
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-2021-4122 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-2021-4122 weaknesses.

CAPEC-111: JSON Hijacking (aka JavaScript Hijacking) JSON Hijacking (aka JavaScript Hijacking) CAPEC-141: Cache Poisoning Cache Poisoning CAPEC-142: DNS Cache Poisoning DNS Cache Poisoning CAPEC-148: Content Spoofing Content Spoofing CAPEC-218: Spoofing of UDDI/ebXML Messages Spoofing of UDDI/ebXML Messages CAPEC-384: Application API Message Manipulation via Man-in-the-Middle Application API Message Manipulation via Man-in-the-Middle CAPEC-385: Transaction or Event Tampering via Application API Manipulation Transaction or Event Tampering via Application API Manipulation CAPEC-386: Application API Navigation Remapping Application API Navigation Remapping CAPEC-387: Navigation Remapping To Propagate Malicious Content Navigation Remapping To Propagate Malicious Content CAPEC-388: Application API Button Hijacking Application API Button Hijacking CAPEC-665: Exploitation of Thunderbolt Protection Flaws Exploitation of Thunderbolt Protection Flaws CAPEC-701: Browser in the Middle (BiTM) Browser in the Middle (BiTM)
Exploit Prediction

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

0.07 }} 0.01%

score

0.28584

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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