Crestron AM-100/AM-101 cURL return.cgi HTTP Requests injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.7 | $0-$5k | 0.00 |
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 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 134273, 134274, 134275 and 134276 are related to this item.
Affected
- Crestron AM-100 1.6.0.2
- Crestron AM-101 2.7.0.2
Product
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.8VulDB 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: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: InjectionCWE: CWE-74 / CWE-707
ATT&CK: T1055
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: FirewallStatus: 🔍
0-Day Time: 🔍
Timeline
01/03/2019 🔍04/30/2019 🔍
05/01/2019 🔍
05/01/2019 🔍
09/11/2023 🔍
Sources
Advisory: tenable.comStatus: Confirmed
CVE: CVE-2019-3931 (🔍)
See also: 🔍
Entry
Created: 05/01/2019 14:07Updated: 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: 🔍
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