7.3
HIGH
CVE-2021-43266
"Mahara Shell Injection Vulnerability"
Description

In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name. Additional, in Mahara before 20.10.4, 21.04.3, and 21.10.1, exporting collections via PDF export could cause code execution

INFO

Published Date :

Nov. 2, 2021, 10:15 p.m.

Last Modified :

May 3, 2022, 4:04 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.3
Affected Products

The following products are affected by CVE-2021-43266 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 Mahara mahara
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-2021-43266.

URL Resource
https://bugs.launchpad.net/mahara/+bug/1942903 Exploit Third Party Advisory
https://bugs.launchpad.net/mahara/+bug/1949527 Third Party Advisory
https://mahara.org/interaction/forum/topic.php?id=8952 Vendor Advisory
https://mahara.org/interaction/forum/topic.php?id=8995 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-2021-43266 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-43266 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
  • CWE Remap by [email protected]

    May. 03, 2022

    Action Type Old Value New Value
    Changed CWE CWE-77 CWE-78
  • Modified Analysis by [email protected]

    Apr. 06, 2022

    Action Type Old Value New Value
    Changed Reference Type https://bugs.launchpad.net/mahara/+bug/1949527 No Types Assigned https://bugs.launchpad.net/mahara/+bug/1949527 Third Party Advisory
    Changed Reference Type https://mahara.org/interaction/forum/topic.php?id=8995 No Types Assigned https://mahara.org/interaction/forum/topic.php?id=8995 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 20.10.0 up to (excluding) 20.10.4 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 21.04.0 up to (excluding) 21.04.3 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 21.10.0 up to (excluding) 21.10.1
  • CVE Modified by [email protected]

    Feb. 28, 2022

    Action Type Old Value New Value
    Changed Description In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name. In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name. Additional, in Mahara before 20.10.4, 21.04.3, and 21.10.1, exporting collections via PDF export could cause code execution
    Added Reference https://bugs.launchpad.net/mahara/+bug/1949527 [No Types Assigned]
    Added Reference https://mahara.org/interaction/forum/topic.php?id=8995 [No Types Assigned]
  • Modified Analysis by [email protected]

    Nov. 09, 2021

    Action Type Old Value New Value
    Changed Reference Type https://mahara.org/interaction/forum/topic.php?id=8952 No Types Assigned https://mahara.org/interaction/forum/topic.php?id=8952 Vendor Advisory
    Changed CPE Configuration OR *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions up to (excluding) 20.04.5 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 20.10.0 up to (excluding) 20.10.3 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 21.04.0 up to (excluding) 21.04.2 *cpe:2.3:a:mahara:mahara:21.10.0:rc1:*:*:*:*:*:* *cpe:2.3:a:mahara:mahara:21.10.0:rc2:*:*:*:*:*:* OR *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 20.04.0 up to (excluding) 20.04.5 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 20.10.0 up to (excluding) 20.10.3 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 21.04.0 up to (excluding) 21.04.2
  • CVE Modified by [email protected]

    Nov. 08, 2021

    Action Type Old Value New Value
    Added Reference https://mahara.org/interaction/forum/topic.php?id=8952 [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 04, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:H/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugs.launchpad.net/mahara/+bug/1942903 No Types Assigned https://bugs.launchpad.net/mahara/+bug/1942903 Exploit, Third Party Advisory
    Added CWE NIST CWE-77
    Added CPE Configuration OR *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions up to (excluding) 20.04.5 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 20.10.0 up to (excluding) 20.10.3 *cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:* versions from (including) 21.04.0 up to (excluding) 21.04.2 *cpe:2.3:a:mahara:mahara:21.10.0:rc1:*:*:*:*:*:* *cpe:2.3:a:mahara:mahara:21.10.0:rc2:*:*:*:*:*:*
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-2021-43266 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

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

0.16 }} 0.01%

score

0.53058

percentile

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