VDB-209766 · CVE-2020-15340 · GCVE-0-2020-15340

ZyXEL CloudCNM SecuManager 3.1.0/3.1.1 id_rsa hard-coded key

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.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ZyXEL CloudCNM SecuManager 3.1.0/3.1.1 and classified as problematic. The impacted element is an unknown function of the file opt/axess/AXAssets/default_axess/axess/TR69/Handlers/turbolink/sshkeys/id_rsa. The manipulation results in hard-coded key. This vulnerability is identified as CVE-2020-15340. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ZyXEL CloudCNM SecuManager 3.1.0/3.1.1 (Cloud Software). Affected is an unknown code of the file opt/axess/AXAssets/default_axess/axess/TR69/Handlers/turbolink/sshkeys/id_rsa. The manipulation with an unknown input leads to a hard-coded key vulnerability. CWE is classifying the issue as CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. This is going to have an impact on confidentiality. CVE summarizes:

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded opt/axess/AXAssets/default_axess/axess/TR69/Handlers/turbolink/sshkeys/id_rsa SSH key.

The weakness was released 09/29/2022. The advisory is available at pierrekim.github.io. This vulnerability is traded as CVE-2020-15340 since 06/26/2020. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1600.001 by the MITRE ATT&CK project.

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

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Productinfo

Type

Cloud Software

Vendor

ZyXEL

Name

CloudCNM SecuManager

Version

License

commercial

Website

Vendor: https://www.zyxel.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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: Hard-coded key
CWE: CWE-321 / CWE-320
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

06/26/2020 🔍
09/29/2022 +825 days 🔍
09/29/2022 +0 days 🔍
09/29/2022 +0 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: pierrekim.github.io
Status: Not defined

CVE: CVE-2020-15340 (🔍)
GCVE (CVE): GCVE-0-2020-15340
GCVE (VulDB): GCVE-100-209766

Entryinfo

Created: 09/29/2022 09:01
Changes: 09/29/2022 09:01 (38)
Complete: 🔍
Cache ID: 216::103