VDB-187465 · CVE-2021-26777 · GCVE-0-2021-26777

CIRCUTOR COMPACT DC-S BASIC Smart Metering Concentrator 1.2.17 index.cgi SetFirewall buffer overflow

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in CIRCUTOR COMPACT DC-S BASIC Smart Metering Concentrator 1.2.17. It has been classified as critical. This vulnerability affects the function SetFirewall of the file index.cgi. This manipulation causes buffer overflow. This vulnerability is registered as CVE-2021-26777. No exploit is available.

Detailsinfo

A vulnerability has been found in CIRCUTOR COMPACT DC-S BASIC Smart Metering Concentrator 1.2.17 and classified as critical. Affected by this vulnerability is the function SetFirewall of the file index.cgi. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 12/02/2021. The advisory is shared at github.com. This vulnerability is known as CVE-2021-26777 since 02/05/2021. Technical details are known, but no exploit is available.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

CIRCUTOR

Name

COMPACT DC-S BASIC Smart Metering Concentrator

Version

1.2.17

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/05/2021 🔍
12/02/2021 +300 days 🔍
12/02/2021 +0 days 🔍
12/08/2021 +6 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2021-26777 (🔍)
GCVE (CVE): GCVE-0-2021-26777
GCVE (VulDB): GCVE-100-187465

Entryinfo

Created: 12/02/2021 08:22
Updated: 12/08/2021 15:07
Changes: 12/02/2021 08:22 (38), 12/08/2021 15:03 (1), 12/08/2021 15:07 (18)
Complete: 🔍
Cache ID: 216::103