VDB-119073 · CVE-2017-16105 · GCVE-0-2017-16105

serverwzl 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 (≈) 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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in serverwzl on Node.js and classified as critical. This impacts an unknown function of the component URL Handler. Performing a manipulation with the input ../ results in path traversal. This vulnerability was named CVE-2017-16105. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in serverwzl on Node.js (JavaScript Library) (the affected version unknown). This affects an unknown part of the component URL Handler. The manipulation with the input value ../ leads to a path traversal vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

serverwzl is a simple http server. serverwzl is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the URL.

The bug was discovered 09/11/2017. The weakness was presented 06/07/2018 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2017-16105 since 10/29/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 268 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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

JavaScript Library

Name

serverwzl

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

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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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: 🔍

0-Day Time: 🔍

Timelineinfo

09/11/2017 🔍
10/29/2017 +48 days 🔍
06/06/2018 +219 days 🔍
06/07/2018 +1 days 🔍
06/07/2018 +0 days 🔍
02/15/2020 +618 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-16105 (🔍)
GCVE (CVE): GCVE-0-2017-16105
GCVE (VulDB): GCVE-100-119073

Entryinfo

Created: 06/07/2018 10:16
Updated: 02/15/2020 20:09
Changes: 06/07/2018 10:16 (57), 02/15/2020 20:09 (1)
Complete: 🔍
Cache ID: 216::103