VDB-134277 · CVE-2019-3929 · Qualys 13484

Crestron AM-100/AM-101 HTTP Endpoint file_transfer.cgi System Command command injection

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CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

A vulnerability was found in Crestron AM-100 and AM-101. It has been classified as very critical. This affects an unknown part of the file file_transfer.cgi of the component HTTP Endpoint. The manipulation as part of a System Command leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-77. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Crestron AM-100 firmware 1.6.0.2, Crestron AM-101 firmware 2.7.0.1, Barco wePresent WiPG-1000P firmware 2.3.0.10, Barco wePresent WiPG-1600W before firmware 2.4.1.19, Extron ShareLink 200/250 firmware 2.0.3.4, Teq AV IT WIPS710 firmware 1.1.0.7, SHARP PN-L703WA firmware 1.4.2.3, Optoma WPS-Pro firmware 1.0.0.5, Blackbox HD WPS firmware 1.0.0.5, InFocus LiteShow3 firmware 1.0.16, and InFocus LiteShow4 2.0.0.7 are vulnerable to command injection via the file_transfer.cgi HTTP endpoint. A remote, unauthenticated attacker can use this vulnerability to execute operating system commands as root.

The bug was discovered 05/01/2019. The weakness was disclosed 04/30/2019 (Website). The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2019-3929 since 01/03/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/05/2020).

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 .

The entries 134273, 134274, 134275 and 134276 are pretty similar.

Affectededit

  • Crestron AM-100 1.6.0.2
  • Crestron AM-101 2.7.0.1
  • Barco wePresent WiPG-1000P 2.3.0.10
  • Barco wePresent WiPG-1600W 2.4.1
  • Extron ShareLink 200/Extron ShareLink 200 250 2.0.3.4
  • Teq AV IT WIPS710 1.1.0.7
  • SHARP PN-L703WA 1.4.2.3
  • Optoma WPS-Pro 1.0.0.5
  • Blackbox HD WPS 1.0.0.5
  • InFocus LiteShow3 1.0.16
  • InFocus LiteShow4 2.0.0.7

Productinfoedit

Vendor

Name

CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-77
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

Threat: 🔍
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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

Advisory: exploit-db.com
Status: Confirmed

CVE: CVE-2019-3929 (🔍)
See also: 🔍

Entryinfoedit

Created: 05/01/2019 02:06 PM
Updated: 06/05/2020 11:16 AM
Changes: (2) vulnerability_discoverydate advisory_url
Complete: 🔍

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