Gryphon Tower Router Service Port 9999 command injection

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 (≈)
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Gryphon Tower Router. Affected by this vulnerability is an unknown functionality of the component Service Port 9999. This manipulation causes command injection. This vulnerability is handled as CVE-2021-20140. The attack can be initiated remotely. There is not any exploit available. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability was found in Gryphon Tower Router (Router Operating System) (the affected version is unknown). It has been declared as very critical. Affected by this vulnerability is an unknown code of the component Service Port 9999. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 12/09/2021. It is possible to read the advisory at tenable.com. This vulnerability is known as CVE-2021-20140 since 12/17/2020. 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 12/15/2021). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Proper firewalling of is able to address this issue.

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

Productinfo

Type

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.0

VulDB Base Score: 9.8
VulDB Temp Score: 9.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
12/09/2021 +357 days 🔍
12/09/2021 +0 days 🔍
12/15/2021 +6 days 🔍

Sourcesinfo

Advisory: tenable.com
Status: Not defined

CVE: CVE-2021-20140 (🔍)
GCVE (CVE): GCVE-0-2021-20140
GCVE (VulDB): GCVE-100-187891

Entryinfo

Created: 12/09/2021 19:00
Updated: 12/15/2021 09:28
Changes: 12/09/2021 19:00 (38), 12/15/2021 09:24 (1), 12/15/2021 09:28 (18)
Complete: 🔍
Cache ID: 216::103

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