FASTGate Fastweb up to 0.00.47_FW_200_Askey 2017-05-17 CGI command injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in FASTGate Fastweb up to 0.00.47_FW_200_Askey 2017-05-17. Affected by this vulnerability is an unknown functionality of the component CGI Handler. The manipulation results in command injection. This vulnerability is identified as CVE-2018-20122. The attack can be executed remotely. There is not any exploit available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as critical has been found in FASTGate Fastweb up to 0.00.47_FW_200_Askey 2017-05-17. Affected is an unknown functionality of the component CGI Handler. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The web interface on FASTGate Fastweb devices with firmware through 0.00.47_FW_200_Askey 2017-05-17 (software through 1.0.1b) exposed a CGI binary that is vulnerable to a command injection vulnerability that can be exploited to achieve remote code execution with root privileges. No authentication is required in order to trigger the vulnerability.

The bug was discovered 12/13/2018. The weakness was released 02/21/2019. This vulnerability is traded as CVE-2018-20122 since 12/12/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability was handled as a non-public zero-day exploit for at least 70 days. During that time the estimated underground price was around $0-$5k.

It is possible to mitigate the weakness by firewalling .

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

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: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/12/2018 🔍
12/13/2018 +1 days 🔍
02/21/2019 +70 days 🔍
02/22/2019 +1 days 🔍
07/11/2023 +1600 days 🔍

Sourcesinfo

Advisory: horizonsecurity.it
Status: Not defined

CVE: CVE-2018-20122 (🔍)
GCVE (CVE): GCVE-0-2018-20122
GCVE (VulDB): GCVE-100-131076

Entryinfo

Created: 02/22/2019 06:48
Updated: 07/11/2023 19:29
Changes: 02/22/2019 06:48 (54), 05/11/2020 20:19 (1), 07/11/2023 19:29 (4)
Complete: 🔍
Cache ID: 216::103

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