6.5
MEDIUM
CVE-2021-32662
Backstage TechDocs Common Environmental Path Disclosure
Description

Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In `@backstage/techdocs-common` versions prior to 0.6.3, a malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`. These files would then be available over the TechDocs backend API. This vulnerability is mitigated by the fact that an attacker would need access to modify the `mkdocs.yml` in the documentation source code, and would also need access to the TechDocs backend API. The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`.

INFO

Published Date :

June 3, 2021, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 6:07 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-32662 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 Linuxfoundation backstage
1 Backstage backstage
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-2021-32662.

URL Resource
https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208 Patch Third Party Advisory
https://github.com/backstage/backstage/releases/tag/release-2021-05-27 Release Notes Third Party Advisory
https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6 Third Party Advisory
https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208 Patch Third Party Advisory
https://github.com/backstage/backstage/releases/tag/release-2021-05-27 Release Notes Third Party Advisory
https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6 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-2021-32662 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-32662 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/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208
    Added Reference https://github.com/backstage/backstage/releases/tag/release-2021-05-27
    Added Reference https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Jun. 21, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:backstage:backstage:*:*:*:*:*:*:*:* versions from (excluding) 0.6.3 OR *cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* versions from (excluding) 0.6.3
  • Initial Analysis by [email protected]

    Jun. 10, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208 No Types Assigned https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208 Patch, Third Party Advisory
    Changed Reference Type https://github.com/backstage/backstage/releases/tag/release-2021-05-27 No Types Assigned https://github.com/backstage/backstage/releases/tag/release-2021-05-27 Release Notes, Third Party Advisory
    Changed Reference Type https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6 No Types Assigned https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:backstage:backstage:*:*:*:*:*:*:*:* versions up to (excluding) 0.6.3
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-2021-32662 is associated with the following CWEs:

Exploit Prediction

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

0.11 }} 0.00%

score

0.42383

percentile

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