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Unsafe HTTP Redirect in Puppet Agent and Puppet Server

Moderate severity GitHub Reviewed Published Dec 2, 2021 to the GitHub Advisory Database • Updated May 4, 2023

Package

bundler puppet (RubyGems)

Affected versions

>= 7.0.0, < 7.12.1
< 6.25.1

Patched versions

7.12.1
6.25.1

Description

A flaw was discovered in Puppet Agent and Puppet Server that may result in a leak of HTTP credentials when following HTTP redirects to a different host. This is similar to CVE-2018-1000007

References

Published by the National Vulnerability Database Nov 18, 2021
Reviewed Nov 30, 2021
Published to the GitHub Advisory Database Dec 2, 2021
Last updated May 4, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(64th percentile)

Weaknesses

No CWEs

CVE ID

CVE-2021-27023

GHSA ID

GHSA-93j5-g845-9wqp

Source code

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