CVE-2021-20178

Description

A flaw was found in ansible. The 'authkey' and 'privkey' credentials are disclosed by default and not protected by no_log feature when using the snmp_facts module. Attackers could take advantage of this information to steal the SNMP credentials. The highest threat from this vulnerability is to data confidentiality.

Statement

The version of ansible shipped with Red Hat Gluster Storage (RHGS) 3 includes the vulnerable snmp module. However, RHGS 3 no longer maintains its own version of Ansible, prerequisite is to enable ansible repository in order to consume the latest version of ansible which has many bug and security fixes.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score55.5N/A
Attack VectorLocalLocalN/A
Attack ComplexityLowLowN/A
Privileges RequiredLowLowN/A
User InteractionRequiredNoneN/A
ScopeUnchangedUnchangedN/A
ConfidentialityHighHighN/A
Integrity ImpactNoneNoneN/A
Availability ImpactNoneNoneN/A

Vector

Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Understanding the Weakness (CWE)

CWE-532

Confidentiality

Technical Impact: Read Application Data

Logging sensitive user data, full path names, or system information often provides attackers with an additional, less-protected path to acquiring the information.

Acknowledgements

This issue was discovered by Abhijeet Kasurde (Red Hat).

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