CVE-2019-19902
Backdoor in Backdrop CMS Configuration Upload Vulnerability
Description
An issue was discovered in Backdrop CMS 1.13.x before 1.13.5 and 1.14.x before 1.14.2. It allows the upload of entire-site configuration archives through the user interface or command line. It does not sufficiently check uploaded archives for invalid data, allowing non-configuration scripts to potentially be uploaded to the server. This issue is mitigated by the fact that the attacker would be required to have the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other measures in the product prevent the execution of PHP scripts, so another server-side scripting language must be accessible on the server to execute code.
INFO
Published Date :
Dec. 19, 2019, 6:15 a.m.
Last Modified :
Nov. 21, 2024, 4:35 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source | 
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | 
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-2019-19902.
                                        
| URL | Resource | 
|---|---|
| https://backdropcms.org/security/backdrop-sa-core-2019-016 | Vendor Advisory | 
| https://backdropcms.org/security/backdrop-sa-core-2019-016 | Vendor Advisory | 
CWE - Common Weakness Enumeration
            While CVE identifies
            specific instances of vulnerabilities, CWE categorizes the common flaws or
            weaknesses that can lead to vulnerabilities. CVE-2019-19902 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-2019-19902
            weaknesses.
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-2019-19902 vulnerability anywhere in the article.
		
                The following table lists the changes that have been made to the
                CVE-2019-19902 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://backdropcms.org/security/backdrop-sa-core-2019-016  - 
                            
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value  - 
                            
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-200 CWE-20  - 
                            
Initial Analysis by [email protected]
Dec. 27, 2019
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 https://backdropcms.org/security/backdrop-sa-core-2019-016 No Types Assigned https://backdropcms.org/security/backdrop-sa-core-2019-016 Vendor Advisory Added CWE NIST CWE-200 Added CPE Configuration OR *cpe:2.3:a:backdropcms:backdrop_cms:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.5 *cpe:2.3:a:backdropcms:backdrop_cms:*:*:*:*:*:*:*:* versions from (including) 1.14.0 up to (excluding) 1.14.2  
Vulnerability Scoring Details
Base CVSS Score: 7.2
Base CVSS Score: 6.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.61 }} -0.46%
score
0.68595
percentile