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8.7
HIGH CVSS 3.1
CVE-2021-45036
Velneo vClient improper authentication
Description

Velneo vClient on its 28.1.3 version, could allow an attacker with knowledge of the victims's username and hashed password to spoof the victim's id against the server.

INFO

Published Date :

Nov. 28, 2022, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 6:31 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-45036 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 Velneo vclient
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
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-2021-45036.

URL Resource
https://doc.velneo.com/v/32/velneo-vserver/funcionalidades/protocolo-vatps Vendor Advisory
https://doc.velneo.com/v/32/velneo/funcionalidades-comunes/conexion-con-velneo-vserver Vendor Advisory
https://doc.velneo.com/v/32/velneo/notas-de-la-version#a-partir-de-esta-version-todos-los-servidores-arrancaran-con-protocolo-vatps Vendor Advisory
https://doc.velneo.com/v/32/velneo/notas-de-la-version#mejoras-de-seguridad-en-validacion-de-usuario-y-contrasena Release Notes Vendor Advisory
https://velneo.es/mivelneo/listado-de-cambios-velneo-32/ Release Notes Vendor Advisory
https://www.incibe.es/en/incibe-cert/notices/aviso/velneo-vclient-improper-authentication-0
https://www.velneo.com/blog/disponible-la-nueva-version-velneo-32 Release Notes Vendor Advisory
https://doc.velneo.com/v/32/velneo-vserver/funcionalidades/protocolo-vatps Vendor Advisory
https://doc.velneo.com/v/32/velneo/funcionalidades-comunes/conexion-con-velneo-vserver Vendor Advisory
https://doc.velneo.com/v/32/velneo/notas-de-la-version#a-partir-de-esta-version-todos-los-servidores-arrancaran-con-protocolo-vatps Vendor Advisory
https://doc.velneo.com/v/32/velneo/notas-de-la-version#mejoras-de-seguridad-en-validacion-de-usuario-y-contrasena Release Notes Vendor Advisory
https://velneo.es/mivelneo/listado-de-cambios-velneo-32/ Release Notes Vendor Advisory
https://www.incibe.es/en/incibe-cert/notices/aviso/velneo-vclient-improper-authentication-0
https://www.velneo.com/blog/disponible-la-nueva-version-velneo-32 Release Notes Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-45036 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-2021-45036 weaknesses.

CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data Utilizing REST's Trust in the System Resource to Obtain Sensitive Data CAPEC-94: Adversary in the Middle (AiTM) Adversary in the Middle (AiTM) CAPEC-114: Authentication Abuse Authentication Abuse CAPEC-115: Authentication Bypass Authentication Bypass CAPEC-151: Identity Spoofing Identity Spoofing CAPEC-194: Fake the Source of Data Fake the Source of Data CAPEC-593: Session Hijacking Session Hijacking CAPEC-633: Token Impersonation Token Impersonation CAPEC-650: Upload a Web Shell to a Web Server Upload a Web Shell to a Web Server CAPEC-21: Exploitation of Trusted Identifiers Exploitation of Trusted Identifiers CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction 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-459: Creating a Rogue Certification Authority Certificate Creating a Rogue Certification Authority Certificate CAPEC-461: Web Services API Signature Forgery Leveraging Hash Function Extension Weakness Web Services API Signature Forgery Leveraging Hash Function Extension Weakness CAPEC-473: Signature Spoof Signature Spoof CAPEC-476: Signature Spoofing by Misrepresentation Signature Spoofing by Misrepresentation CAPEC-667: Bluetooth Impersonation AttackS (BIAS) Bluetooth Impersonation AttackS (BIAS)

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-2021-45036 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-45036 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://doc.velneo.com/v/32/velneo/funcionalidades-comunes/conexion-con-velneo-vserver
    Added Reference https://doc.velneo.com/v/32/velneo/notas-de-la-version#a-partir-de-esta-version-todos-los-servidores-arrancaran-con-protocolo-vatps
    Added Reference https://doc.velneo.com/v/32/velneo/notas-de-la-version#mejoras-de-seguridad-en-validacion-de-usuario-y-contrasena
    Added Reference https://doc.velneo.com/v/32/velneo-vserver/funcionalidades/protocolo-vatps
    Added Reference https://velneo.es/mivelneo/listado-de-cambios-velneo-32/
    Added Reference https://www.incibe.es/en/incibe-cert/notices/aviso/velneo-vclient-improper-authentication-0
    Added Reference https://www.velneo.com/blog/disponible-la-nueva-version-velneo-32
  • CVE Modified by [email protected]

    Sep. 16, 2024

    Action Type Old Value New Value
    Changed Description Velneo vClient on its 28.1.3 version, could allow an attacker with knowledge of the victims's username and hashed password to spoof the victim's id against the server. Velneo vClient on its 28.1.3 version, could allow an attacker with knowledge of the victims's username and hashed password to spoof the victim's id against the server.
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Nov. 09, 2023

    Action Type Old Value New Value
    Changed Description Velneo vClient on its 28.1.3 version, could allow an attacker with knowledge of the victims's username and hashed password to spoof the victim's id against the server. Velneo vClient on its 28.1.3 version, could allow an attacker with knowledge of the victims's username and hashed password to spoof the victim's id against the server.
    Added Reference Spanish National Cybersecurity Institute, S.A. (INCIBE) https://www.incibe.es/en/incibe-cert/notices/aviso/velneo-vclient-improper-authentication-0 [No types assigned]
    Removed Reference Spanish National Cybersecurity Institute, S.A. (INCIBE) https://www.incibe-cert.es/en/early-warning/security-advisories/velneo-vclient-improper-authentication-0
    Added CWE Spanish National Cybersecurity Institute, S.A. (INCIBE) CWE-290
    Removed CWE Spanish National Cybersecurity Institute, S.A. (INCIBE) CWE-836
  • Reanalysis by [email protected]

    Jul. 21, 2023

    Action Type Old Value New Value
    Removed CWE NIST CWE-290
    Added CWE NIST CWE-287
  • Initial Analysis by [email protected]

    Dec. 01, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type https://doc.velneo.com/v/32/velneo/funcionalidades-comunes/conexion-con-velneo-vserver No Types Assigned https://doc.velneo.com/v/32/velneo/funcionalidades-comunes/conexion-con-velneo-vserver Vendor Advisory
    Changed Reference Type https://doc.velneo.com/v/32/velneo/notas-de-la-version#a-partir-de-esta-version-todos-los-servidores-arrancaran-con-protocolo-vatps No Types Assigned https://doc.velneo.com/v/32/velneo/notas-de-la-version#a-partir-de-esta-version-todos-los-servidores-arrancaran-con-protocolo-vatps Vendor Advisory
    Changed Reference Type https://doc.velneo.com/v/32/velneo/notas-de-la-version#mejoras-de-seguridad-en-validacion-de-usuario-y-contrasena No Types Assigned https://doc.velneo.com/v/32/velneo/notas-de-la-version#mejoras-de-seguridad-en-validacion-de-usuario-y-contrasena Release Notes, Vendor Advisory
    Changed Reference Type https://doc.velneo.com/v/32/velneo-vserver/funcionalidades/protocolo-vatps No Types Assigned https://doc.velneo.com/v/32/velneo-vserver/funcionalidades/protocolo-vatps Vendor Advisory
    Changed Reference Type https://velneo.es/mivelneo/listado-de-cambios-velneo-32/ No Types Assigned https://velneo.es/mivelneo/listado-de-cambios-velneo-32/ Release Notes, Vendor Advisory
    Changed Reference Type https://www.incibe-cert.es/en/early-warning/security-advisories/velneo-vclient-improper-authentication-0 No Types Assigned https://www.incibe-cert.es/en/early-warning/security-advisories/velneo-vclient-improper-authentication-0 Third Party Advisory
    Changed Reference Type https://www.velneo.com/blog/disponible-la-nueva-version-velneo-32 No Types Assigned https://www.velneo.com/blog/disponible-la-nueva-version-velneo-32 Release Notes, Vendor Advisory
    Added CWE NIST CWE-290
    Added CPE Configuration OR *cpe:2.3:a:velneo:vclient:28.1.3:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 01, 2022

    Action Type Old Value New Value
    Added Reference https://doc.velneo.com/v/32/velneo/notas-de-la-version#mejoras-de-seguridad-en-validacion-de-usuario-y-contrasena [No Types Assigned]
    Added Reference https://www.velneo.com/blog/disponible-la-nueva-version-velneo-32 [No Types Assigned]
    Added Reference https://doc.velneo.com/v/32/velneo-vserver/funcionalidades/protocolo-vatps [No Types Assigned]
    Added Reference https://velneo.es/mivelneo/listado-de-cambios-velneo-32/ [No Types Assigned]
    Added Reference https://doc.velneo.com/v/32/velneo/notas-de-la-version#a-partir-de-esta-version-todos-los-servidores-arrancaran-con-protocolo-vatps [No Types Assigned]
    Added Reference https://doc.velneo.com/v/32/velneo/funcionalidades-comunes/conexion-con-velneo-vserver [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.
Vulnerability Scoring Details
Base CVSS Score: 8.7
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.24 }} 0.05%

score

0.47405

percentile