7.5
HIGH
CVE-2021-4250
cgriego active_attr Regex Handler Denial of Service Vulnerability
Description

A vulnerability classified as problematic has been found in cgriego active_attr up to 0.15.2. This affects the function call of the file lib/active_attr/typecasting/boolean_typecaster.rb of the component Regex Handler. The manipulation of the argument value leads to denial of service. The exploit has been disclosed to the public and may be used. Upgrading to version 0.15.3 is able to address this issue. The name of the patch is dab95e5843b01525444b82bd7b336ef1d79377df. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216207.

INFO

Published Date :

Dec. 18, 2022, 10:15 p.m.

Last Modified :

May 17, 2024, 2:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-4250 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 Active_attr_project active_attr
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-2021-4250.

URL Resource
https://github.com/cgriego/active_attr/commit/dab95e5843b01525444b82bd7b336ef1d79377df Patch Third Party Advisory
https://github.com/cgriego/active_attr/issues/184 Exploit Issue Tracking Patch Third Party Advisory
https://github.com/cgriego/active_attr/pull/185 Patch Third Party Advisory
https://github.com/cgriego/active_attr/releases/tag/v0.15.3 Release Notes Third Party Advisory
https://vuldb.com/?id.216207 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-2021-4250 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-4250 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. 17, 2024

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

    May. 14, 2024

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

    Apr. 11, 2024

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

    Mar. 21, 2024

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

    Feb. 29, 2024

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

    Nov. 07, 2023

    Action Type Old Value New Value
    Removed CVSS V3 VulDB AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    Added CVSS V3.1 VulDB AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  • Initial Analysis by [email protected]

    Jan. 03, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/cgriego/active_attr/commit/dab95e5843b01525444b82bd7b336ef1d79377df No Types Assigned https://github.com/cgriego/active_attr/commit/dab95e5843b01525444b82bd7b336ef1d79377df Patch, Third Party Advisory
    Changed Reference Type https://github.com/cgriego/active_attr/issues/184 No Types Assigned https://github.com/cgriego/active_attr/issues/184 Exploit, Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/cgriego/active_attr/pull/185 No Types Assigned https://github.com/cgriego/active_attr/pull/185 Patch, Third Party Advisory
    Changed Reference Type https://github.com/cgriego/active_attr/releases/tag/v0.15.3 No Types Assigned https://github.com/cgriego/active_attr/releases/tag/v0.15.3 Release Notes, Third Party Advisory
    Changed Reference Type https://vuldb.com/?id.216207 No Types Assigned https://vuldb.com/?id.216207 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:active_attr_project:active_attr:*:*:*:*:*:*:*:* versions up to (excluding) 0.15.3
  • CVE Modified by [email protected]

    Dec. 24, 2022

    Action Type Old Value New Value
    Changed Description A vulnerability classified as problematic has been found in cgriego active_attr up to 0.15.3. This affects the function call of the file lib/active_attr/typecasting/boolean_typecaster.rb of the component Regex Handler. The manipulation of the argument value leads to denial of service. The exploit has been disclosed to the public and may be used. Upgrading to version 0.15.4 is able to address this issue. The name of the patch is dab95e5843b01525444b82bd7b336ef1d79377df. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216207. A vulnerability classified as problematic has been found in cgriego active_attr up to 0.15.2. This affects the function call of the file lib/active_attr/typecasting/boolean_typecaster.rb of the component Regex Handler. The manipulation of the argument value leads to denial of service. The exploit has been disclosed to the public and may be used. Upgrading to version 0.15.3 is able to address this issue. The name of the patch is dab95e5843b01525444b82bd7b336ef1d79377df. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216207.
    Added CVSS V3 VulDB AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    Removed CVSS V3.1 VulDB AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    Removed Reference https://github.com/cgriego/active_attr/releases/tag/v0.15.4 [No Types Assigned]
    Added Reference https://github.com/cgriego/active_attr/releases/tag/v0.15.3 [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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-4250 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-2021-4250 weaknesses.

Exploit Prediction

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

0.26 }} 0.04%

score

0.66628

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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User Interaction
Scope
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Integrity
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