VDB-188747 · CVE-2021-21911 · ICSA-21-348-01

Advantech R-SeeNet up to 2.4.16 privileges management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as very critical has been found in Advantech R-SeeNet up to 2.4.16. This impacts an unknown function. The manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-2021-21911. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Advantech R-SeeNet up to 2.4.16. It has been rated as very critical. This issue affects some unknown processing. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 12/20/2021 as ICSA-21-348-01. It is possible to read the advisory at cisa.gov. The identification of this vulnerability is CVE-2021-21911. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/20/2021). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 2.4.17 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Advantech

Name

R-SeeNet

Version

License

commercial

Website

Vendor: https://www.advantech.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: R-SeeNet 2.4.17

Timelineinfo

01/04/2021 🔍
12/20/2021 +350 days 🔍
12/20/2021 +0 days 🔍
12/24/2021 +4 days 🔍

Sourcesinfo

Vendor: advantech.com

Advisory: ICSA-21-348-01
Status: Confirmed

CVE: CVE-2021-21911 (🔍)
GCVE (CVE): GCVE-0-2021-21911
GCVE (VulDB): GCVE-100-188747

Entryinfo

Created: 12/20/2021 08:25
Updated: 12/24/2021 21:08
Changes: 12/20/2021 08:25 (37), 12/24/2021 21:08 (2)
Complete: 🔍
Cache ID: 216::103