4.3
MEDIUM
CVE-2021-39868
GitLab Project Size Overflow Arbitrary Amplification
Description

In all versions of GitLab CE/EE since version 8.12, an authenticated low-privileged malicious user may create a project with unlimited repository size by modifying values in a project export.

INFO

Published Date :

Oct. 4, 2021, 5:15 p.m.

Last Modified :

Oct. 12, 2021, 7:47 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-39868 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 Gitlab gitlab
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-2021-39868.

URL Resource
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39868.json Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/24649 Broken Link
https://hackerone.com/reports/420258 Permissions Required 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-2021-39868 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-39868 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]

    Oct. 12, 2021

    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:L/A:N
    Changed Reference Type https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39868.json No Types Assigned https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39868.json Vendor Advisory
    Changed Reference Type https://gitlab.com/gitlab-org/gitlab/-/issues/24649 No Types Assigned https://gitlab.com/gitlab-org/gitlab/-/issues/24649 Broken Link
    Changed Reference Type https://hackerone.com/reports/420258 No Types Assigned https://hackerone.com/reports/420258 Permissions Required, Third Party Advisory
    Added CWE NIST CWE-732
    Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:4.3.0:*:*:*:community:*:*:* *cpe:2.3:a:gitlab:gitlab:4.3.0:*:*:*:enterprise:*:*:* *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 8.12.0 up to (excluding) 14.1.7 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 8.12.0 up to (excluding) 14.1.7 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 14.2.0 up to (excluding) 14.2.5 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 14.2.0 up to (excluding) 14.2.5
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.
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

0.27846

percentile

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