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dio vulnerable to CRLF injection with HTTP method string

High severity GitHub Reviewed Published Mar 21, 2023 in cfug/dio • Updated Oct 5, 2023

Package

pub dio (Pub)

Affected versions

< 5.0.0

Patched versions

5.0.0

Description

Impact

The dio package 4.0.0 for Dart allows CRLF injection if the attacker controls the HTTP method string, a different vulnerability than CVE-2020-35669.

Patches

The vulnerability has been resolved by cfug/dio@927f79e, and included since v5.0.0.

Workarounds

Cherry-pick the commit to your own fork can resolves the vulberability too.

References

References

@AlexV525 AlexV525 published to cfug/dio Mar 21, 2023
Published to the GitHub Advisory Database Mar 21, 2023
Reviewed Mar 21, 2023
Last updated Oct 5, 2023

Severity

High

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
High
Integrity
None
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:H/I:N/A:N

EPSS score

0.408%
(75th percentile)

Weaknesses

CVE ID

CVE-2021-31402

GHSA ID

GHSA-9324-jv53-9cc8

Source code

Credits

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