Red Hat Ansible User information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Red Hat Ansible. This vulnerability affects unknown code of the component User Module. This manipulation causes information disclosure. This vulnerability is tracked as CVE-2018-16837. The attack is restricted to local execution. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Red Hat Ansible (version now known) and classified as problematic. Affected by this vulnerability is some unknown processing of the component User Module. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

Ansible "User" module leaks any data which is passed on as a parameter to ssh-keygen. This could lean in undesirable situations such as passphrases credentials passed as a parameter for the ssh-keygen executable. Showing those credentials in clear text form for every user which have access just to the process list.

The bug was discovered 10/23/2018. The weakness was disclosed 10/23/2018 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2018-16837 since 09/11/2018. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 118786 (RHEL 7 : ansible (RHSA-2018:3460)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176593 (Debian Security Update for ansible (DSA 4396-1)).

Upgrading 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 (118786) and SecurityFocus (BID 105700†). The entries VDB-120172, VDB-121475, VDB-128663 and VDB-132546 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118786
Nessus Name: RHEL 7 : ansible (RHSA-2018:3460)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

09/11/2018 🔍
10/23/2018 +42 days 🔍
10/23/2018 +0 days 🔍
10/23/2018 +0 days 🔍
10/23/2018 +0 days 🔍
10/24/2018 +1 days 🔍
11/05/2018 +12 days 🔍
11/07/2018 +2 days 🔍
05/30/2023 +1665 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: RHSA-2018:3460
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-16837 (🔍)
GCVE (CVE): GCVE-0-2018-16837
GCVE (VulDB): GCVE-100-125887
SecurityFocus: 105700 - Ansible CVE-2018-16837 Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 10/24/2018 08:16
Updated: 05/30/2023 17:29
Changes: 10/24/2018 08:16 (72), 04/06/2020 09:40 (6), 08/22/2022 09:38 (4), 05/30/2023 17:21 (2), 05/30/2023 17:29 (12)
Complete: 🔍
Cache ID: 216::103

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