Description
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Storage's `DiskService#delete_prefixed` passes blob keys directly to `Dir.glob` without escaping glob metacharacters. If a blob key contains attacker-controlled input or custom-generated keys with glob metacharacters, it may be possible to delete unintended files from the storage directory. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
E
Unchanged
Affected products
- rails / activestorage>= 8.1.0.beta1, < 8.1.2.1 – >= 8.1.0.beta1, < 8.1.2.1
- rails / activestorage>= 8.0.0.beta1, < 8.0.4.1 – >= 8.0.0.beta1, < 8.0.4.1
- rails / activestorage< 7.2.3.1 – < 7.2.3.1
References
- VENDOR_ADVISORYhttps://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m
- PATCHhttps://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c
- PATCHhttps://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf
- PATCHhttps://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82
- PATCHhttps://github.com/rails/rails/releases/tag/v7.2.3.1
- PATCHhttps://github.com/rails/rails/releases/tag/v8.0.4.1
- PATCHhttps://github.com/rails/rails/releases/tag/v8.1.2.1
Updated 35m ago · 8 sources