Harp Module up to 0.29.0 on npm Server Rule Directory information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as problematic, was found in Harp Module up to 0.29.0 on npm (NPM Package). This affects an unknown function of the component Server Rule Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (Directory). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Information exposure through the directory listing in npm's harp module allows to access files that are supposed to be ignored according to the harp server rules.Vulnerable versions are <= 0.29.0 and no fix was applied to our knowledge.

The bug was discovered 04/06/2019. The weakness was shared 05/10/2019. This vulnerability is uniquely identified as CVE-2019-5437 since 01/04/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 34 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.

The entry 134590 is related to this item.





CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Name: Directory
Class: Information disclosure / Directory
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

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


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


01/04/2019 🔍
04/06/2019 +92 days 🔍
05/10/2019 +34 days 🔍
05/11/2019 +1 days 🔍
09/15/2023 +1588 days 🔍


Advisory: hackerone.com
Status: Not defined

CVE: CVE-2019-5437 (🔍)
See also: 🔍


Created: 05/11/2019 05:56 PM
Updated: 09/15/2023 03:00 PM
Changes: 05/11/2019 05:56 PM (55), 06/08/2020 10:16 PM (1), 09/15/2023 03:00 PM (4)
Complete: 🔍


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