VDB-134279 · CVE-2019-3931 · Qualys 13484

Crestron AM-100/AM-101 cURL return.cgi HTTP Requests injection

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Crestron AM-100 and AM-101. It has been classified as critical. This affects an unknown part of the file return.cgi of the component cURL. The manipulation as part of HTTP Requests leads to injection. This vulnerability is traded as CVE-2019-3931. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in Crestron AM-100 and AM-101. It has been rated as critical. This issue affects an unknown code block of the file return.cgi of the component cURL. The manipulation as part of a HTTP Requests leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to argumention injection to the curl binary via crafted HTTP requests to return.cgi. A remote, authenticated attacker can use this vulnerability to upload files to the device and ultimately execute code as root.

The bug was discovered 05/01/2019. The weakness was shared 04/30/2019. The identification of this vulnerability is CVE-2019-3931 since 01/03/2019. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

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

Addressing this vulnerability is possible by firewalling .

The entries VDB-134273, VDB-134274, VDB-134275 and VDB-134276 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

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: 8.8
VulDB Meta Temp Score: 8.7

VulDB Base Score: 8.8
VulDB Temp Score: 8.6
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: Injection
CWE: CWE-74 / CWE-707 / CWE-20
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-2019-3931 (🔍)
GCVE (CVE): GCVE-0-2019-3931
GCVE (VulDB): GCVE-100-134279
See also: 🔍

Entryinfo

Created: 05/01/2019 14:07
Updated: 09/11/2023 12:33
Changes: 05/01/2019 14:07 (58), 06/05/2020 11:29 (1), 09/11/2023 12:33 (4)
Complete: 🔍
Cache ID: 216::103

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