Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-26255 First vendor Publication 2020-12-08
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Overall CVSS Score 9.1
Base Score 9.1 Environmental Score 9.1
impact SubScore 6 Temporal Score 9.1
Exploitabality Sub Score 2.3
 
Attack Vector Network Attack Complexity Low
Privileges Required High User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:P/I:P/A:P)
Cvss Base Score 6.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Kirby is a CMS. In Kirby CMS (getkirby/cms) before version 3.4.5, and Kirby Panel before version 2.5.14 , an editor with full access to the Kirby Panel can upload a PHP .phar file and execute it on the server. This vulnerability is critical if you might have potential attackers in your group of authenticated Panel users, as they can gain access to the server with such a Phar file. Visitors without Panel access *cannot* use this attack vector. The problem has been patched in Kirby 2.5.14 and Kirby 3.4.5. Please update to one of these or a later version to fix the vulnerability. Note: Kirby 2 reaches end of life on December 31, 2020. We therefore recommend to upgrade your Kirby 2 sites to Kirby 3. If you cannot upgrade, we still recommend to update to Kirby 2.5.14.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26255

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-434 Unrestricted Upload of File with Dangerous Type (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 1

Sources (Detail)

https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8b...
https://github.com/getkirby/kirby/commit/db8f371b13036861c9cc5ba3e85e27f73fce...
https://github.com/getkirby/kirby/releases/tag/3.4.5
https://github.com/getkirby/kirby/security/advisories/GHSA-g3h8-cg9x-47qw
https://packagist.org/packages/getkirby/cms
https://packagist.org/packages/getkirby/panel
Source Url

Alert History

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Date Informations
2024-11-28 13:42:44
  • Multiple Updates
2021-05-04 13:50:46
  • Multiple Updates
2021-04-22 03:02:09
  • Multiple Updates
2020-12-10 17:22:51
  • Multiple Updates
2020-12-08 21:24:18
  • First insertion