VDB-134280 · CVE-2019-3932 · Qualys 13484

Crestron AM-100/AM-101 return.tgi hard-coded credentials

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Crestron AM-100 and AM-101. It has been declared as critical. This vulnerability affects unknown code of the file return.tgi. The manipulation results in hard-coded credentials. This vulnerability is known as CVE-2019-3932. It is possible to launch the attack remotely. No exploit is available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Crestron AM-100 and AM-101. Affected is some unknown processing of the file return.tgi. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. CWE is classifying the issue as CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. 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 are vulnerable to authentication bypass due to a hard-coded password in return.tgi. A remote, unauthenticated attacker can use this vulnerability to control external devices via the uart_bridge.

The bug was discovered 05/01/2019. The weakness was published 04/30/2019. This vulnerability is traded as CVE-2019-3932 since 01/03/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1110.001.

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

It is possible to mitigate the weakness by firewalling .

Similar entries are available at VDB-134273, VDB-134274, VDB-134275 and VDB-134276. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

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

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/03/2019 🔍
04/30/2019 +117 days 🔍
05/01/2019 +1 days 🔍
05/01/2019 +0 days 🔍
09/11/2023 +1594 days 🔍

Sourcesinfo

Advisory: tenable.com
Status: Confirmed

CVE: CVE-2019-3932 (🔍)
GCVE (CVE): GCVE-0-2019-3932
GCVE (VulDB): GCVE-100-134280
See also: 🔍

Entryinfo

Created: 05/01/2019 14:07
Updated: 09/11/2023 12:42
Changes: 05/01/2019 14:07 (56), 06/05/2020 11:37 (1), 09/11/2023 12:42 (4)
Complete: 🔍
Cache ID: 216::103

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