Node.js 8.5.x Pathname Validator access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Node.js 8.5.x. This vulnerability affects unknown code of the component Pathname Validator. The manipulation results in access control. This vulnerability is known as CVE-2017-14849. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Node.js 8.5.x (JavaScript Library). Affected is an unknown functionality of the component Pathname Validator. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Node.js 8.5.0 before 8.6.0 allows remote attackers to access unintended files, because a change to ".." handling was incompatible with the pathname validation used by unspecified community modules.

The bug was discovered 09/27/2017. The weakness was published 09/28/2017 (Website). The advisory is shared for download at nodejs.org. This vulnerability is traded as CVE-2017-14849 since 09/27/2017. The exploitability is told to be easy. 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 T1068.

It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 103759 (FreeBSD : node -- access to unintended files (1257718e-be97-458a-9744-d938b592db42)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading to version 8.6.0 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103759) and SecurityFocus (BID 101056†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103759
Nessus Name: FreeBSD : node -- access to unintended files (1257718e-be97-458a-9744-d938b592db42)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

D2Sec: Node.js 8.5.0 Path Traversal File Disclosure

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Node.js 8.6.0

Timelineinfo

09/27/2017 🔍
09/27/2017 +0 days 🔍
09/27/2017 +0 days 🔍
09/27/2017 +0 days 🔍
09/28/2017 +1 days 🔍
09/28/2017 +0 days 🔍
10/10/2017 +12 days 🔍
10/11/2017 +1 days 🔍
11/20/2019 +770 days 🔍

Sourcesinfo

Advisory: nodejs.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14849 (🔍)
GCVE (CVE): GCVE-0-2017-14849
GCVE (VulDB): GCVE-100-107220
SecurityFocus: 101056 - Node.js CVE-2017-14849 Security Bypass Vulnerability

Entryinfo

Created: 09/28/2017 11:17
Updated: 11/20/2019 10:16
Changes: 09/28/2017 11:17 (68), 11/20/2019 10:16 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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