VDB-189476 · CVE-2021-20164 · GCVE-0-2021-20164

Trendnet AC2600 TEW-827DRU 2.08B01 smbserver.asp missing encryption

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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Trendnet AC2600 TEW-827DRU 2.08B01. Affected by this issue is some unknown functionality of the file smbserver.asp. Such manipulation leads to missing encryption. This vulnerability is documented as CVE-2021-20164. There is not any exploit available.

Detailsinfo

A vulnerability was found in Trendnet AC2600 TEW-827DRU 2.08B01. It has been rated as problematic. Affected by this issue is an unknown function of the file smbserver.asp. The manipulation with an unknown input leads to a missing encryption vulnerability. Using CWE to declare the problem leads to CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. Impacted is confidentiality.

The weakness was released 12/31/2021. The advisory is shared for download at tenable.com. This vulnerability is handled as CVE-2021-20164 since 12/17/2020. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.

By approaching the search of inurl:smbserver.asp it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Trendnet

Name

AC2600 TEW-827DRU

Version

2.08B01

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: Missing encryption
CWE: CWE-311 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined
Google Hack: 🔍

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
12/31/2021 +379 days 🔍
12/31/2021 +0 days 🔍
01/05/2022 +5 days 🔍

Sourcesinfo

Advisory: tenable.com
Status: Not defined

CVE: CVE-2021-20164 (🔍)
GCVE (CVE): GCVE-0-2021-20164
GCVE (VulDB): GCVE-100-189476

Entryinfo

Created: 12/31/2021 08:05
Updated: 01/05/2022 08:55
Changes: 12/31/2021 08:05 (37), 01/05/2022 08:55 (1)
Complete: 🔍
Cache ID: 216::103