VDB-119188 · CVE-2017-16222 · GCVE-0-2017-16222

elding on Node.js URL GET Request path traversal

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.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in elding on Node.js. It has been declared as critical. This vulnerability affects unknown code of the component URL Handler. Executing a manipulation with the input ../ as part of GET Request can lead to path traversal. This vulnerability appears as CVE-2017-16222. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in elding on Node.js (JavaScript Library) (version now known). This vulnerability affects some unknown processing of the component URL Handler. The manipulation with the input value ../ leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

elding is a simple web server. elding is vulnerable to a directory traversal issue, allowing an attacker to access the filesystem by placing "../" in the url. The files accessible, however, are limited to files with a file extension. Sending a GET request to /../../../etc/passwd, for example, will return a 404 on etc/passwd/index.js.

The weakness was presented 06/07/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2017-16222 since 10/29/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

JavaScript Library

Name

elding

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

10/29/2017 🔍
06/06/2018 +219 days 🔍
06/07/2018 +1 days 🔍
06/07/2018 +0 days 🔍
06/07/2018 +0 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-16222 (🔍)
GCVE (CVE): GCVE-0-2017-16222
GCVE (VulDB): GCVE-100-119188

Entryinfo

Created: 06/07/2018 10:43
Updated: 06/07/2018 11:37
Changes: 06/07/2018 10:43 (38), 06/07/2018 11:37 (19)
Complete: 🔍
Cache ID: 216::103