CVE-2020-26255
Kirby CMS Phar File Execution Remote Code Execution (RCE)
Description
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.
INFO
Published Date :
Dec. 8, 2020, 3:15 p.m.
Last Modified :
Dec. 10, 2020, 2:35 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
Exploitability Score :
2.3
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-2020-26255.
| URL | Resource |
|---|---|
| https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8bc410881 | Patch Third Party Advisory |
| https://github.com/getkirby/kirby/commit/db8f371b13036861c9cc5ba3e85e27f73fce5e09 | Patch Third Party Advisory |
| https://github.com/getkirby/kirby/releases/tag/3.4.5 | Release Notes Third Party Advisory |
| https://github.com/getkirby/kirby/security/advisories/GHSA-g3h8-cg9x-47qw | Release Notes Third Party Advisory |
| https://packagist.org/packages/getkirby/cms | Product Third Party Advisory |
| https://packagist.org/packages/getkirby/panel | Product 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-2020-26255 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26255 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]
Dec. 10, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://github.com/getkirby/kirby/commit/db8f371b13036861c9cc5ba3e85e27f73fce5e09 No Types Assigned https://github.com/getkirby/kirby/commit/db8f371b13036861c9cc5ba3e85e27f73fce5e09 Patch, Third Party Advisory Changed Reference Type https://github.com/getkirby/kirby/releases/tag/3.4.5 No Types Assigned https://github.com/getkirby/kirby/releases/tag/3.4.5 Release Notes, Third Party Advisory Changed Reference Type https://github.com/getkirby/kirby/security/advisories/GHSA-g3h8-cg9x-47qw No Types Assigned https://github.com/getkirby/kirby/security/advisories/GHSA-g3h8-cg9x-47qw Release Notes, Third Party Advisory Changed Reference Type https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8bc410881 No Types Assigned https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8bc410881 Patch, Third Party Advisory Changed Reference Type https://packagist.org/packages/getkirby/cms No Types Assigned https://packagist.org/packages/getkirby/cms Product, Third Party Advisory Changed Reference Type https://packagist.org/packages/getkirby/panel No Types Assigned https://packagist.org/packages/getkirby/panel Product, Third Party Advisory Added CWE NIST CWE-434 Added CPE Configuration OR *cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:* versions up to (excluding) 3.4.5 *cpe:2.3:a:getkirby:panel:*:*:*:*:*:*:*:* versions up to (excluding) 2.5.14
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26255 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-2020-26255
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.23 }} 0.05%
score
0.60928
percentile