Moxa TN-4900/TN-5900 up to 3.3 Certificate Management command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Moxa TN-4900 and TN-5900 up to 3.3. The affected element is an unknown function of the component Certificate Management. This manipulation causes command injection. This vulnerability is tracked as CVE-2023-33238. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Moxa TN-4900 and TN-5900 up to 3.3 (Automation Software) and classified as critical. Affected by this vulnerability is some unknown processing of the component Certificate Management. 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 summary by CVE is:

TN-4900 Series firmware versions v1.2.4 and prior and TN-5900 Series firmware versions v3.3 and prior are vulnerable to the command injection vulnerability. This vulnerability stems from inadequate input validation in the certificate management function, which could potentially allow malicious users to execute remote code on affected devices.

The weakness was disclosed 08/17/2023. The advisory is shared at moxa.com. This vulnerability is known as CVE-2023-33238 since 05/19/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/13/2023). MITRE ATT&CK project uses the attack technique T1202 for this issue.

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

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.1

VulDB Base Score: 7.2
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 7.2
CNA Vector (Moxa Inc.): 🔍

CVSSv2info

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

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/19/2023 🔍
08/17/2023 +90 days 🔍
08/17/2023 +0 days 🔍
09/13/2023 +27 days 🔍

Sourcesinfo

Vendor: moxa.com

Advisory: moxa.com
Status: Confirmed

CVE: CVE-2023-33238 (🔍)
GCVE (CVE): GCVE-0-2023-33238
GCVE (VulDB): GCVE-100-237397

Entryinfo

Created: 08/17/2023 10:30
Updated: 09/13/2023 08:11
Changes: 08/17/2023 10:30 (49), 09/13/2023 08:11 (11)
Complete: 🔍
Cache ID: 216::103

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