CVE-2020-5256
BookStack Server-Side Request Forgery (SSRF) and Remote Code Execution
Description
BookStack before version 0.25.5 has a vulnerability where a user could upload PHP files through image upload functions, which would allow them to execute code on the host system remotely. They would then have the permissions of the PHP process. This most impacts scenarios where non-trusted users are given permission to upload images in any area of the application. The issue was addressed in a series of patches in versions 0.25.3, 0.25.4 and 0.25.5. Users should upgrade to at least v0.25.5 to avoid this vulnerability.
INFO
Published Date :
March 9, 2020, 4:15 p.m.
Last Modified :
March 10, 2020, 1:34 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
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-2020-5256.
| URL | Resource |
|---|---|
| https://github.com/BookStackApp/BookStack/releases/tag/v0.25.3 | Release Notes |
| https://github.com/BookStackApp/BookStack/releases/tag/v0.25.4 | Release Notes |
| https://github.com/BookStackApp/BookStack/releases/tag/v0.25.5 | Release Notes |
| https://github.com/BookStackApp/BookStack/security/advisories/GHSA-g9rq-x4fj-f5hx | 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-2020-5256 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-5256 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]
Mar. 10, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/BookStackApp/BookStack/releases/tag/v0.25.3 No Types Assigned https://github.com/BookStackApp/BookStack/releases/tag/v0.25.3 Release Notes Changed Reference Type https://github.com/BookStackApp/BookStack/releases/tag/v0.25.4 No Types Assigned https://github.com/BookStackApp/BookStack/releases/tag/v0.25.4 Release Notes Changed Reference Type https://github.com/BookStackApp/BookStack/releases/tag/v0.25.5 No Types Assigned https://github.com/BookStackApp/BookStack/releases/tag/v0.25.5 Release Notes Changed Reference Type https://github.com/BookStackApp/BookStack/security/advisories/GHSA-g9rq-x4fj-f5hx No Types Assigned https://github.com/BookStackApp/BookStack/security/advisories/GHSA-g9rq-x4fj-f5hx Third Party Advisory Added CWE NIST CWE-434 Added CPE Configuration OR *cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:* versions up to (excluding) 0.25.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-5256 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-2020-5256
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.00%
score
0.60429
percentile