9.1
CRITICAL
CVE-2021-25847
Moxa Camera VPort 06EC-2V Series LLDP-MED TLV Length Field Validation Bypass
Description

Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, allows information disclosure to attackers due to controllable loop counter variable via a crafted lldp packet.

INFO

Published Date :

May 10, 2021, 11:15 a.m.

Last Modified :

Nov. 21, 2024, 5:55 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-25847 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 Moxa vport_06ec-2v26m_firmware
2 Moxa vport_06ec-2v36m-t_firmware
3 Moxa vport_06ec-2v36m-ct_firmware
4 Moxa vport_06ec-2v36m-ct-t_firmware
5 Moxa vport_06ec-2v42m_firmware
6 Moxa vport_06ec-2v42m-t_firmware
7 Moxa vport_06ec-2v42m-ct_firmware
8 Moxa vport_06ec-2v42m-ct-t_firmware
9 Moxa vport_06ec-2v60m_firmware
10 Moxa vport_06ec-2v60m-t_firmware
11 Moxa vport_06ec-2v60m-ct_firmware
12 Moxa vport_06ec-2v60m-ct-t_firmware
13 Moxa vport_06ec-2v80m_firmware
14 Moxa vport_06ec-2v80m-t_firmware
15 Moxa vport_06ec-2v80m-ct_firmware
16 Moxa vport_06ec-2v80m-ct-t_firmware
17 Moxa vport_06ec-2v26m
18 Moxa vport_06ec-2v36m-t
19 Moxa vport_06ec-2v36m-ct
20 Moxa vport_06ec-2v36m-ct-t
21 Moxa vport_06ec-2v42m
22 Moxa vport_06ec-2v42m-t
23 Moxa vport_06ec-2v42m-ct
24 Moxa vport_06ec-2v42m-ct-t
25 Moxa vport_06ec-2v60m
26 Moxa vport_06ec-2v60m-t
27 Moxa vport_06ec-2v60m-ct
28 Moxa vport_06ec-2v60m-ct-t
29 Moxa vport_06ec-2v80m
30 Moxa vport_06ec-2v80m-t
31 Moxa vport_06ec-2v80m-ct
32 Moxa vport_06ec-2v80m-ct-t
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-2021-25847.

URL Resource
https://www.moxa.com/en/ Vendor Advisory
https://www.moxa.com/en/support/product-support/security-advisory/vport-06ec-2v-series-ip-cameras-vulnerabilities Vendor Advisory
https://www.moxa.com/en/ Vendor Advisory
https://www.moxa.com/en/support/product-support/security-advisory/vport-06ec-2v-series-ip-cameras-vulnerabilities Vendor 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-2021-25847 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-25847 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://www.moxa.com/en/
    Added Reference https://www.moxa.com/en/support/product-support/security-advisory/vport-06ec-2v-series-ip-cameras-vulnerabilities
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    May. 18, 2021

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:C)
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  • Initial Analysis by [email protected]

    May. 18, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://www.moxa.com/en/ No Types Assigned https://www.moxa.com/en/ Vendor Advisory
    Changed Reference Type https://www.moxa.com/en/support/product-support/security-advisory/vport-06ec-2v-series-ip-cameras-vulnerabilities No Types Assigned https://www.moxa.com/en/support/product-support/security-advisory/vport-06ec-2v-series-ip-cameras-vulnerabilities Vendor Advisory
    Added CWE NIST CWE-125
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v26m_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v26m:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v36m-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v36m-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v36m-ct_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v36m-ct:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v36m-ct-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v36m-ct-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v42m_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v42m:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v42m-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v42m-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v42m-ct_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v42m-ct:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v42m-ct-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v42m-ct-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v60m_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v60m:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v60m-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v60m-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v60m-ct_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v60m-ct:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v60m-ct-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v60m-ct-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v80m_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v80m:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v80m-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v80m-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v80m-ct_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v80m-ct:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:vport_06ec-2v80m-ct-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1 OR cpe:2.3:h:moxa:vport_06ec-2v80m-ct-t:-:*:*:*:*:*:*:*
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-2021-25847 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-2021-25847 weaknesses.

Exploit Prediction

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

0.23 }} 0.02%

score

0.61192

percentile

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