CVE-2021-36766
Concrete5 PHP Object Injection Vulnerability
Description
Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/single_page/dashboard/system/environment/logging.php Logging::update_logging() method. User input passed through the logFile request parameter is not properly sanitized before being used in a call to the file_exists() PHP function. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code.
INFO
Published Date :
July 30, 2021, 2:15 p.m.
Last Modified :
Sept. 22, 2021, 4:56 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
1.2
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-2021-36766.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html | Exploit Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2021/Jul/36 | Exploit Mailing List Third Party Advisory |
| https://hackerone.com/reports/1063039 | 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-2021-36766 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-36766 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 -
Reanalysis by [email protected]
Sep. 22, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:concrete5:concrete5:*:*:*:-:*:*:*:* versions up to (including) 8.5.5 OR *cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:* versions up to (excluding) 8.5.6 -
Initial Analysis by [email protected]
Aug. 09, 2021
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:U/C:H/I:H/A:H Changed Reference Type http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html No Types Assigned http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://seclists.org/fulldisclosure/2021/Jul/36 No Types Assigned http://seclists.org/fulldisclosure/2021/Jul/36 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://hackerone.com/reports/1063039 No Types Assigned https://hackerone.com/reports/1063039 Permissions Required, Third Party Advisory Added CWE NIST CWE-502 Added CPE Configuration OR *cpe:2.3:a:concrete5:concrete5:*:*:*:-:*:*:*:* versions up to (including) 8.5.5
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-36766 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-2021-36766
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.62 }} 0.74%
score
0.90537
percentile