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Open Redirect in github.com/AndrewBurian/powermux

Moderate severity GitHub Reviewed Published Jun 28, 2021 in AndrewBurian/powermux • Updated May 30, 2024

Package

gomod github.com/AndrewBurian/powermux (Go)

Affected versions

< 1.1.1

Patched versions

1.1.1

Description

Impact

Attackers may be able to craft phishing links and other open redirects by exploiting the trailing slash redirection feature. This may lead to users being redirected to untrusted sites after following an attacker crafted link.

Patches

The issue is resolved in v1.1.1

Workarounds

There are no existing workarounds.
You may detect attempts to craft urls that exploit this feature by looking for request paths containing pairs of forward slashes in sequence combined with a trailing slash e.g. https://example.com//foo/

References

@AndrewBurian AndrewBurian published to AndrewBurian/powermux Jun 28, 2021
Published by the National Vulnerability Database Jun 29, 2021
Reviewed Jun 30, 2021
Published to the GitHub Advisory Database Jul 1, 2021
Last updated May 30, 2024

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
High
Privileges required
None
User interaction
Required
Scope
Changed
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:H/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.078%
(35th percentile)

Weaknesses

CVE ID

CVE-2021-32721

GHSA ID

GHSA-mj9r-wwm8-7q52

Source code

No known source code
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