Serve on Node.js URL Encoding Filename data processing

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.
5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Serve on Node.js and classified as problematic. This issue affects some unknown processing of the component URL Encoding Handler. Executing a manipulation as part of Filename can lead to data processing. This vulnerability is registered as CVE-2018-3718. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in Serve on Node.js (JavaScript Library) (the affected version is unknown) and classified as problematic. This vulnerability affects an unknown code of the component URL Encoding Handler. The manipulation as part of a Filename leads to a data processing vulnerability. The CWE definition for the vulnerability is CWE-19. As an impact it is known to affect confidentiality. CVE summarizes:

serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.

The bug was discovered 04/25/2018. The weakness was published 06/07/2018 (Website). The advisory is shared for download at hackerone.com. This vulnerability was named CVE-2018-3718 since 12/28/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 42 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: Data processing
CWE: CWE-19
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/28/2017 🔍
04/25/2018 +118 days 🔍
06/06/2018 +41 days 🔍
06/07/2018 +1 days 🔍
06/07/2018 +0 days 🔍
02/16/2020 +619 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Not defined

CVE: CVE-2018-3718 (🔍)
GCVE (CVE): GCVE-0-2018-3718
GCVE (VulDB): GCVE-100-119200

Entryinfo

Created: 06/07/2018 10:46
Updated: 02/16/2020 19:28
Changes: 06/07/2018 10:46 (57), 02/16/2020 19:28 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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