CVE-2019-14771
Backdrop CMS Arbitrary File Upload Vulnerability
Description
Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 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, potentially allowing non-configuration scripts to be uploaded to the server. (This attack is mitigated by the attacker needing the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other preventative measures in Backdrop CMS prevent the execution of PHP scripts, so another server-side scripting language must be accessible on the server to execute code.) Note: This has been disputed by multiple 3rd parties due to advanced permissions that are needed to exploit.
INFO
Published Date :
Aug. 8, 2019, 2:15 a.m.
Last Modified :
Aug. 5, 2024, 1:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
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-2019-14771
.
URL | Resource |
---|---|
https://backdropcms.org/security/backdrop-sa-core-2019-012 | 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-2019-14771
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-14771
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]
Aug. 05, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 17, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value Changed Description Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 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, potentially allowing non-configuration scripts to be uploaded to the server. (This attack is mitigated by the attacker needing the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other preventative measures in Backdrop CMS prevent the execution of PHP scripts, so another server-side scripting language must be accessible on the server to execute code.) Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 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, potentially allowing non-configuration scripts to be uploaded to the server. (This attack is mitigated by the attacker needing the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other preventative measures in Backdrop CMS prevent the execution of PHP scripts, so another server-side scripting language must be accessible on the server to execute code.) Note: This has been disputed by multiple 3rd parties due to advanced permissions that are needed to exploit. Added Tag MITRE disputed -
Reanalysis by [email protected]
Aug. 19, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:backdropcms:backdrop_core:*:*:*:*:*:*:*:* versions from (including) 1.12.0 up to (excluding) 1.12.8 *cpe:2.3:a:backdropcms:backdrop_core:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.3 OR *cpe:2.3:a:backdropcms:backdrop_cms:*:*:*:*:*:*:*:* versions from (including) 1.12.0 up to (excluding) 1.12.8 *cpe:2.3:a:backdropcms:backdrop_cms:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.3 -
Reanalysis by [email protected]
Aug. 16, 2019
Action Type Old Value New Value Changed CVSS V2 (AV:N/AC:M/Au:S/C:C/I:C/A:C) (AV:N/AC:M/Au:N/C:C/I:C/A:C) Changed CVSS V3 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
Initial Analysis by [email protected]
Aug. 14, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:S/C:C/I:C/A:C) Added CVSS V3 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-2019-012 No Types Assigned https://backdropcms.org/security/backdrop-sa-core-2019-012 Vendor Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:a:backdropcms:backdrop_core:*:*:*:*:*:*:*:* versions from (including) 1.12.0 up to (excluding) 1.12.8 *cpe:2.3:a:backdropcms:backdrop_core:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-14771
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-2019-14771
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.48 }} -0.01%
score
0.73249
percentile