9.8
CRITICAL
CVE-2021-22640
Ovarro TBox Password Decryption Vulnerability
Description

An attacker can decrypt the Ovarro TBox login password by communication capture and brute force attacks.

INFO

Published Date :

July 28, 2022, 3:15 p.m.

Last Modified :

April 17, 2025, 4:15 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-22640 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 Ovarro tbox_ms-cpu32_firmware
2 Ovarro tbox_ms-cpu32-s2_firmware
3 Ovarro tbox_tg2_firmware
4 Ovarro tbox_rm2_firmware
5 Ovarro twinsoft
6 Ovarro tbox_lt2-530_firmware
7 Ovarro tbox_lt2-532_firmware
8 Ovarro tbox_lt2-540_firmware
9 Ovarro tbox_lt2-530
10 Ovarro tbox_lt2-532
11 Ovarro tbox_lt2-540
12 Ovarro tbox_ms-cpu32
13 Ovarro tbox_ms-cpu32-s2
14 Ovarro tbox_rm2
15 Ovarro tbox_tg2
: Total Affected Vendor : 1 | Products : 15
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-2021-22640.

URL Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04 Third Party Advisory US Government Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04 Third Party Advisory US Government Resource

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-2021-22640 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-22640 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 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Apr. 17, 2025

    Action Type Old Value New Value
    Added CWE CWE-522
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Aug. 04, 2022

    Action Type Old Value New Value
    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://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04 No Types Assigned https://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04 Third Party Advisory, US Government Resource
    Added CWE NIST CWE-307
    Added CPE Configuration OR *cpe:2.3:a:ovarro:twinsoft:*:*:*:*:*:*:*:* versions up to (excluding) 12.4
    Added CPE Configuration AND OR *cpe:2.3:o:ovarro:tbox_lt2-530_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.46 OR cpe:2.3:h:ovarro:tbox_lt2-530:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ovarro:tbox_lt2-532_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.46 OR cpe:2.3:h:ovarro:tbox_lt2-532:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ovarro:tbox_lt2-540_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.46 OR cpe:2.3:h:ovarro:tbox_lt2-540:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ovarro:tbox_ms-cpu32_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.46 OR cpe:2.3:h:ovarro:tbox_ms-cpu32:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ovarro:tbox_ms-cpu32-s2_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.46 OR cpe:2.3:h:ovarro:tbox_ms-cpu32-s2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ovarro:tbox_rm2_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.46 OR cpe:2.3:h:ovarro:tbox_rm2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ovarro:tbox_tg2_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.46 OR cpe:2.3:h:ovarro:tbox_tg2:-:*:*:*:*:*:*:*
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-2021-22640 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-2021-22640 weaknesses.

CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-94: Adversary in the Middle (AiTM) Adversary in the Middle (AiTM) CAPEC-102: Session Sidejacking Session Sidejacking CAPEC-509: Kerberoasting Kerberoasting CAPEC-555: Remote Services with Stolen Credentials Remote Services with Stolen Credentials CAPEC-561: Windows Admin Shares with Stolen Credentials Windows Admin Shares with Stolen Credentials CAPEC-644: Use of Captured Hashes (Pass The Hash) Use of Captured Hashes (Pass The Hash) CAPEC-645: Use of Captured Tickets (Pass The Ticket) Use of Captured Tickets (Pass The Ticket) CAPEC-652: Use of Known Kerberos Credentials Use of Known Kerberos Credentials CAPEC-701: Browser in the Middle (BiTM) Browser in the Middle (BiTM) CAPEC-16: Dictionary-based Password Attack Dictionary-based Password Attack CAPEC-49: Password Brute Forcing Password Brute Forcing CAPEC-560: Use of Known Domain Credentials Use of Known Domain Credentials CAPEC-565: Password Spraying Password Spraying CAPEC-600: Credential Stuffing Credential Stuffing CAPEC-652: Use of Known Kerberos Credentials Use of Known Kerberos Credentials CAPEC-653: Use of Known Operating System Credentials Use of Known Operating System Credentials CAPEC-50: Password Recovery Exploitation Password Recovery Exploitation CAPEC-102: Session Sidejacking Session Sidejacking CAPEC-474: Signature Spoofing by Key Theft Signature Spoofing by Key Theft CAPEC-509: Kerberoasting Kerberoasting CAPEC-551: Modify Existing Service Modify Existing Service CAPEC-555: Remote Services with Stolen Credentials Remote Services with Stolen Credentials CAPEC-560: Use of Known Domain Credentials Use of Known Domain Credentials CAPEC-561: Windows Admin Shares with Stolen Credentials Windows Admin Shares with Stolen Credentials CAPEC-600: Credential Stuffing Credential Stuffing CAPEC-644: Use of Captured Hashes (Pass The Hash) Use of Captured Hashes (Pass The Hash) CAPEC-645: Use of Captured Tickets (Pass The Ticket) Use of Captured Tickets (Pass The Ticket) CAPEC-652: Use of Known Kerberos Credentials Use of Known Kerberos Credentials CAPEC-653: Use of Known Operating System Credentials Use of Known Operating System Credentials
Exploit Prediction

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

0.09 }} 0.01%

score

0.26971

percentile

CVSS31 - Vulnerability Scoring System
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Latest DB Update: Jun. 19, 2025 2:20