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NoneBot Potential Information Leak in User-Constructed Message Templates

Moderate severity GitHub Reviewed Published Feb 9, 2024 in nonebot/nonebot2 • Updated Feb 16, 2024

Package

pip nonebot2 (pip)

Affected versions

>= 2.0.0a16, <= 2.1.3

Patched versions

2.2.0

Description

Impact

This security advisory pertains to a potential information leak (e.g., environment variables) in instances where developers utilize MessageTemplate and incorporate user-provided data into templates.

Patches

The identified vulnerability has been remedied in fix #2509 and will be included in versions released after 2.1.3. Users are strongly advised to upgrade to these patched versions to safeguard against the vulnerability.

Workarounds

A temporary workaround involves filtering underscores before incorporating user input into the message template.

References

References

@yanyongyu yanyongyu published to nonebot/nonebot2 Feb 9, 2024
Published to the GitHub Advisory Database Feb 9, 2024
Reviewed Feb 9, 2024
Published by the National Vulnerability Database Feb 9, 2024
Last updated Feb 16, 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
Low
User interaction
Required
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:L/UI:R/S:U/C:H/I:N/A:N

EPSS score

0.087%
(38th percentile)

Weaknesses

CVE ID

CVE-2024-21624

GHSA ID

GHSA-59j8-776v-xxxg

Source code

Credits

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