yttivy on Node.js URL path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in yttivy on Node.js and classified as critical. Affected by this vulnerability is an unknown functionality of the component URL Handler. This manipulation with the input ../ causes path traversal. This vulnerability is registered as CVE-2017-16219. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in yttivy on Node.js (JavaScript Library) (the affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown part 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. The summary by CVE is:

yttivy is a static file server. yttivy is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.

The bug was discovered 10/10/2017. The weakness was published 06/07/2018 (Website). The advisory is shared at github.com. This vulnerability is known as CVE-2017-16219 since 10/29/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 239 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

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

10/10/2017 🔍
10/29/2017 +19 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-2017-16219 (🔍)
GCVE (CVE): GCVE-0-2017-16219
GCVE (VulDB): GCVE-100-119185

Entryinfo

Created: 06/07/2018 10:42
Updated: 02/16/2020 16:49
Changes: 06/07/2018 10:42 (57), 02/16/2020 16:49 (1)
Complete: 🔍
Cache ID: 216::103

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

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