CVE-2021-25833
ONLYOFFICE DocumentServer File Extension Overwriting RCE
Description
A file extension handling issue was found in [server] module of ONLYOFFICE DocumentServer v4.2.0.71-v5.6.0.21. The file extension is controlled by an attacker through the request data and leads to arbitrary file overwriting. Using this vulnerability, a remote attacker can obtain remote code execution on DocumentServer.
INFO
Published Date :
March 1, 2021, 4:15 p.m.
Last Modified :
March 15, 2021, 7:53 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-25833 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-25833.
| URL | Resource |
|---|---|
| https://github.com/ONLYOFFICE/DocumentServer | Product Vendor Advisory |
| https://github.com/ONLYOFFICE/server | Product |
| https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/DocService/sources/converterservice.js#L200 | Third Party Advisory |
| https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L283 | Third Party Advisory |
| https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L593 | Third Party Advisory |
| https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833 | Exploit 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).
:unlock: Vulnerability Research and Proof of Concept exploits for ONLYOFFICE
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-25833 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-25833 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]
Mar. 15, 2021
Action Type Old Value New Value Removed CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Removed CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Removed CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CWE NIST NVD-CWE-noinfo Added CWE NIST CWE-22 Changed CPE Configuration OR *cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:* versions from (including) 4.2.0.236 up to (including) 5.6.4.13 OR *cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:* versions from (including) 4.2.0.71 up to (including) 5.6.0.21 -
Initial Analysis by [email protected]
Mar. 05, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833 No Types Assigned https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833 Exploit, Third Party Advisory Changed Reference Type https://github.com/ONLYOFFICE/DocumentServer No Types Assigned https://github.com/ONLYOFFICE/DocumentServer Product, Vendor Advisory Changed Reference Type https://github.com/ONLYOFFICE/server No Types Assigned https://github.com/ONLYOFFICE/server Product Changed Reference Type https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/DocService/sources/converterservice.js#L200 No Types Assigned https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/DocService/sources/converterservice.js#L200 Third Party Advisory Changed Reference Type https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L283 No Types Assigned https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L283 Third Party Advisory Changed Reference Type https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L593 No Types Assigned https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L593 Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:* versions from (including) 4.2.0.236 up to (including) 5.6.4.13 -
CVE Modified by [email protected]
Mar. 02, 2021
Action Type Old Value New Value Added Reference https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-25833 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-2021-25833
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
9.10 }} 2.86%
score
0.94000
percentile