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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 3
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Rubyonrails Rails
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
|
— |
7.2.3.1
|
|
Rubyonrails Rails
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
|
8.0.0
|
8.0.4.1
|
|
Rubyonrails Rails
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
|
8.1.0
|
8.1.2.1
|
References 7
https://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c
security-advisories@github.com
https://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf
security-advisories@github.com
https://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82
security-advisories@github.com
https://github.com/rails/rails/releases/tag/v7.2.3.1
security-advisories@github.com
https://github.com/rails/rails/releases/tag/v8.0.4.1
security-advisories@github.com
https://github.com/rails/rails/releases/tag/v8.1.2.1
security-advisories@github.com
https://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m
security-advisories@github.com