OSSEC up to 3.1.0 on Windows path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in OSSEC up to 3.1.0 on Windows. It has been classified as critical. Affected is an unknown code. The manipulation with an unknown input 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, integrity, and availability. CVE summarizes:

The agent in OSSEC through 3.1.0 on Windows allows local users to gain NT AUTHORITY\SYSTEM access via Directory Traversal by leveraging full access to the associated OSSEC server.

The bug was discovered 11/28/2018. The weakness was published 11/29/2018 (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2018-19666 since 11/29/2018. The attack needs to be approached locally. A authentication is needed for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 1 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.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍



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

NVD Base Score: 🔍


Class: Path traversal
ATT&CK: T1006

Local: Yes
Remote: No

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: 🔍


11/28/2018 🔍
11/29/2018 +1 days 🔍
11/29/2018 +0 days 🔍
11/29/2018 +0 days 🔍
11/30/2018 +1 days 🔍
06/12/2023 +1655 days 🔍


Advisory: 1585
Status: Not defined

CVE: CVE-2018-19666 (🔍)


Created: 11/30/2018 07:53 AM
Updated: 06/12/2023 09:55 AM
Changes: 11/30/2018 07:53 AM (56), 04/16/2020 10:30 AM (1), 06/12/2023 09:55 AM (3)
Complete: 🔍


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