Skip to content

Leading white space bypasses protocol validation

Moderate severity GitHub Reviewed Published Mar 3, 2022 in medialize/URI.js • Updated Feb 3, 2023

Package

npm urijs (npm)

Affected versions

< 1.19.9

Patched versions

1.19.9

Description

Impact

Whitespace characters are not removed from the beginning of the protocol, so URLs are not parsed properly and protocol validation mechanisms may fail.

Patches

Patched in 1.19.9

Workarounds

Remove leading whitespace from values before passing them to URI.parse (e.g. via .href(value) or new URI(value)), e.g. by using

function remove_whitespace(url){
     const whitespace = /^[\x00-\x20\u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]+/;
     url = url.replace(whitespace, '')
     return url
}

References

For more information

If you have any questions or comments about this advisory:

References

@rodneyrehm rodneyrehm published to medialize/URI.js Mar 3, 2022
Published to the GitHub Advisory Database Mar 3, 2022
Reviewed Mar 3, 2022
Published by the National Vulnerability Database Mar 3, 2022
Last updated Feb 3, 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
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

0.124%
(48th percentile)

Weaknesses

CVE ID

CVE-2022-24723

GHSA ID

GHSA-gmv4-r438-p67f

Source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.