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go-saml's XML Digital Signatures use SHA-1

Moderate severity GitHub Reviewed Published Dec 28, 2022 to the GitHub Advisory Database • Updated May 20, 2024

Package

gomod github.com/RobotsAndPencils/go-saml (Go)

Affected versions

<= 0.0.0-20170520135329-fb13cb52a46b

Patched versions

None

Description

XML Digital Signatures generated and validated using this package use SHA-1, which may allow an attacker to craft inputs which cause hash collisions depending on their control over the input.

References

Published by the National Vulnerability Database Dec 28, 2022
Published to the GitHub Advisory Database Dec 28, 2022
Reviewed Dec 30, 2022
Last updated May 20, 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
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
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:N/I:L/A:N

EPSS score

0.078%
(35th percentile)

Weaknesses

CVE ID

CVE-2020-36563

GHSA ID

GHSA-5rhg-xhgr-5hfj

Source code

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