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

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

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CVSS Meta Temp Score
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8.6$0-$5k0.00

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 privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-74. 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 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 134273, 134274, 134275 and 134276 are related to this item.

Affectededit

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

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-74
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

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Countermeasuresinfoedit

Recommended: Firewall
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-2019-3931 (🔍)
See also: 🔍

Entryinfoedit

Created: 05/01/2019 02:07 PM
Updated: 06/05/2020 11:29 AM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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