tencent-server on Node.js URL 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 (≈)
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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.
7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in tencent-server on Node.js. This affects an unknown function of the component URL Handler. Executing a manipulation with the input ../ can lead to path traversal. This vulnerability is tracked as CVE-2017-16216. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in tencent-server on Node.js (JavaScript Library) (version unknown) and classified as critical. This vulnerability affects an unknown function 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:

tencent-server is a simple web server. tencent-server is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.

The bug was discovered 10/09/2017. The weakness was disclosed 06/07/2018 (Website). The advisory is available at github.com. This vulnerability was named CVE-2017-16216 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. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 240 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.

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Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

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

NVD Base Score: 7.5
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: 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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/09/2017 🔍
10/29/2017 +20 days 🔍
06/06/2018 +219 days 🔍
06/07/2018 +1 days 🔍
06/07/2018 +0 days 🔍
02/16/2020 +619 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-16216 (🔍)
GCVE (CVE): GCVE-0-2017-16216
GCVE (VulDB): GCVE-100-119182

Entryinfo

Created: 06/07/2018 10:41
Updated: 02/16/2020 16:30
Changes: 06/07/2018 10:41 (57), 02/16/2020 16:30 (1)
Complete: 🔍
Cache ID: 216::103

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