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Prevent RCE when deserializing untrusted user input

High
marcovtwout published GHSA-mw2w-2hj2-fg8q Nov 14, 2023

Package

composer yiisoft/yii (Composer)

Affected versions

<1.1.29

Patched versions

1.1.29

Description

Impact

Affected versions of yiisoft/yii are vulnerable to Remote Code Execution (RCE) if the application calls unserialize() on arbitrary user input.

Patches

Upgrade yiisoft/yii to version 1.1.29 or higher.

For more information

See the following links for more details:

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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
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE ID

CVE-2023-47130

Weaknesses

Credits