VDB-134286 · CVE-2019-3938 · Qualys 13484

Crestron AM-100/AM-101 Configuration File hard-coded credentials

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CVSS Meta Temp Score
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6.5$0-$5k0.00

A vulnerability was found in Crestron AM-100 and AM-101. It has been classified as critical. Affected is an unknown code block of the component Configuration File Handler. The manipulation with an unknown input leads to a weak authentication vulnerability. CWE is classifying the issue as CWE-798. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 stores usernames, passwords, and other configuration options in the file generated via the "export configuration" feature. The configuration file is encrypted using the awenc binary. The same binary can be used to decrypt any configuration file since all the encryption logic is hard coded. A local attacker can use this vulnerability to gain access to devices username and passwords.

The bug was discovered 05/01/2019. The weakness was released 04/30/2019. This vulnerability is traded as CVE-2019-3938 since 01/03/2019. Local access is required to approach this attack. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1110.001 by the MITRE ATT&CK project.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 13484 (Crestron AM-100 and AM-101 Multiple Vulnerabilities).

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

Entries connected to this vulnerability are available at 134273, 134274, 134275 and 134276.

Affectededit

  • Crestron AM-100 1.6.0.2
  • Crestron AM-101 2.7.0.2

Productinfoedit

Vendor

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Weak authentication
CWE: CWE-798
ATT&CK: T1110.001

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

01/03/2019 🔍
04/30/2019 +117 days 🔍
05/01/2019 +1 days 🔍
05/01/2019 +0 days 🔍
06/05/2020 +401 days 🔍

Sourcesinfoedit

Status: Confirmed

CVE: CVE-2019-3938 (🔍)
See also: 🔍

Entryinfoedit

Created: 05/01/2019 02:10 PM
Updated: 06/05/2020 12:11 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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