9.8
CRITICAL
CVE-2020-11535
ONLYOFFICE Document Server XML Injection Code Execution
Description

An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.

INFO

Published Date :

April 15, 2020, 3:15 p.m.

Last Modified :

April 22, 2020, 6:58 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-11535 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
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-2020-11535.

URL Resource
https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0 Third Party Advisory
https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551 Release Notes 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-2020-11535 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-11535 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]

    Apr. 22, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0 No Types Assigned https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0 Third Party Advisory
    Changed Reference Type https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551 No Types Assigned https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551 Release Notes, Third Party Advisory
    Added CWE NIST CWE-91
    Added CPE Configuration OR *cpe:2.3:a:onlyoffice:document_server:5.5.0:*:*:*:*:*:*:*
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-2020-11535 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-2020-11535 weaknesses.

Exploit Prediction

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

0.48 }} -0.20%

score

0.76134

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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