9.8
CRITICAL
CVE-2021-25832
ONLYOFFICE DocumentServer Unpadded Heap Buffer Overflow
Description

A heap buffer overflow vulnerability inside of BMP image processing was found at [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v6.0.0. Using this vulnerability, an attacker is able to gain remote code executions on DocumentServer.

INFO

Published Date :

March 1, 2021, 4:15 p.m.

Last Modified :

March 15, 2021, 7:53 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-25832 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-25832 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Onlyoffice document_server

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

Updated: 11 months, 2 weeks ago
22 stars 1 fork 1 watcher
Born at : June 27, 2021, 2:13 p.m. This repo has been linked 8 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-25832 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-25832 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
  • 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-2021-25832 No Types Assigned https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25832 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/ONLYOFFICE/core No Types Assigned https://github.com/ONLYOFFICE/core Product, Vendor Advisory
    Changed Reference Type https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L424 No Types Assigned https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L424 Vendor Advisory
    Changed Reference Type https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L428 No Types Assigned https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L428 Vendor Advisory
    Changed Reference Type https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L354 No Types Assigned https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L354 Vendor Advisory
    Changed Reference Type https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L358 No Types Assigned https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L358 Vendor Advisory
    Changed Reference Type https://github.com/ONLYOFFICE/DocumentServer No Types Assigned https://github.com/ONLYOFFICE/DocumentServer Product
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:* versions from (including) 4.0.0-9 up to (including) 6.0.0
  • 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-2021-25832 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-25832 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-2021-25832 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

9.11 }} 0.51%

score

0.94698

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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