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Moodle External function mod_assign_save_submission does not check due dates

Moderate severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Jan 26, 2024

Package

composer moodle/moodle (Composer)

Affected versions

>= 2.7, < 2.7.13
>= 2.8, < 2.8.11
>= 2.9, < 2.9.5
>= 3.0, < 3.0.3

Patched versions

2.7.13
2.8.11
2.9.5
3.0.3

Description

The save_submission function in mod/assign/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 allows remote authenticated users to bypass intended due-date restrictions by leveraging the student role for a web-service request.

References

Published by the National Vulnerability Database May 22, 2016
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jan 26, 2024
Last updated Jan 26, 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
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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS score

0.153%
(53rd percentile)

Weaknesses

CVE ID

CVE-2016-2159

GHSA ID

GHSA-cw72-69wq-f9f2

Source code

Credits

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