10.0
CRITICAL
CVE-2021-26472
VembuBDR/OffsiteDR OS Command Injection
Description

In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 installed on Windows, the http API located at /consumerweb/secure/download.php. Using this command argument an unauthenticated attacker can execute arbitrary OS commands with SYSTEM privileges.

INFO

Published Date :

June 8, 2021, 7:15 p.m.

Last Modified :

Nov. 21, 2024, 5:56 a.m.

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-26472 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-2021-26472 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 Vembu bdr_suite
2 Vembu offsite_dr
1 Microsoft windows
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-2021-26472.

URL Resource
https://csirt.divd.nl/2021/05/11/Vembu-zero-days/ Third Party Advisory
https://csirt.divd.nl/cases/DIVD-2020-00011/ Third Party Advisory
https://csirt.divd.nl/cves/CVE-2021-26472/ Third Party Advisory
https://www.wbsec.nl/vembu Broken Link Third Party Advisory
https://csirt.divd.nl/2021/05/11/Vembu-zero-days/ Third Party Advisory
https://csirt.divd.nl/cases/DIVD-2020-00011/ Third Party Advisory
https://csirt.divd.nl/cves/CVE-2021-26472/ Third Party Advisory
https://www.wbsec.nl/vembu Broken Link 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).

Scripts to test for various CVEs in VembuDBR

Shell Lua

Updated: 3 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : March 23, 2021, 4:03 p.m. This repo has been linked 4 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-2021-26472 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-26472 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://csirt.divd.nl/2021/05/11/Vembu-zero-days/
    Added Reference https://csirt.divd.nl/cases/DIVD-2020-00011/
    Added Reference https://csirt.divd.nl/cves/CVE-2021-26472/
    Added Reference https://www.wbsec.nl/vembu
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Apr. 06, 2022

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Changed Reference Type https://www.wbsec.nl/vembu Third Party Advisory https://www.wbsec.nl/vembu Broken Link, Third Party Advisory
    Removed CWE NIST NVD-CWE-noinfo
    Added CWE NIST CWE-78
    Changed CPE Configuration OR *cpe:2.3:a:vembu:bdr_suite:*:*:*:*:*:*:*:* versions up to (excluding) 4.2.0 *cpe:2.3:a:vembu:offsite_dr:4.2.0:*:*:*:*:*:*:* *cpe:2.3:a:vembu:offsite_dr:4.2.0.1:*:*:*:*:*:*:* AND OR *cpe:2.3:a:vembu:bdr_suite:*:*:*:*:*:*:*:* versions up to (excluding) 4.2.0.1 *cpe:2.3:a:vembu:offsite_dr:*:*:*:*:*:*:*:* versions up to (excluding) 4.2.0.1 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 04, 2022

    Action Type Old Value New Value
    Changed Description Vembu BDR Suite before 4.2.0 allows Unauthenticated Remote Code Execution by placing a command in a GET request (issue 2 of 2). In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 installed on Windows, the http API located at /consumerweb/secure/download.php. Using this command argument an unauthenticated attacker can execute arbitrary OS commands with SYSTEM privileges.
    Added CVSS V3.1 MITRE AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Removed Reference https://www.divd.nl/ [Third Party Advisory]
  • Initial Analysis by [email protected]

    Jun. 14, 2021

    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://csirt.divd.nl/2021/05/11/Vembu-zero-days/ No Types Assigned https://csirt.divd.nl/2021/05/11/Vembu-zero-days/ Third Party Advisory
    Changed Reference Type https://csirt.divd.nl/cases/DIVD-2020-00011/ No Types Assigned https://csirt.divd.nl/cases/DIVD-2020-00011/ Third Party Advisory
    Changed Reference Type https://csirt.divd.nl/cves/CVE-2021-26472/ No Types Assigned https://csirt.divd.nl/cves/CVE-2021-26472/ Third Party Advisory
    Changed Reference Type https://www.divd.nl/ No Types Assigned https://www.divd.nl/ Third Party Advisory
    Changed Reference Type https://www.wbsec.nl/vembu No Types Assigned https://www.wbsec.nl/vembu Third Party Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:a:vembu:bdr_suite:*:*:*:*:*:*:*:* versions up to (excluding) 4.2.0 *cpe:2.3:a:vembu:offsite_dr:4.2.0:*:*:*:*:*:*:* *cpe:2.3:a:vembu:offsite_dr:4.2.0.1:*:*:*:*:*:*:*
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-2021-26472 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

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

3.93 }} 2.26%

score

0.91899

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability