There is an information leak vulnerability in Sprockets. Versions Affected: 4.0.0.beta7 and lower, 3.7.1 and lower, 2.12.4 and lower. Specially crafted requests can be used to access files that exists on the filesystem that is outside an application's root directory, when the Sprockets server is used in production. All users running an affected release should either upgrade or use one of the work arounds immediately.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-3760 from the MITRE CVE dictionary dictionary and NIST NVD.
| CVSS3 Base Score | 7.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | None |
| Availability Impact | None |
| Platform | Errata | Release Date |
|---|---|---|
| CloudForms Management Engine 5.8 | RHSA-2018:2745 | 2018-09-26 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-ror42-rubygem-sprockets) | RHSA-2018:2244 | 2018-07-24 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-ror50-rubygem-sprockets) | RHSA-2018:2245 | 2018-07-24 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ror50-rubygem-sprockets) | RHSA-2018:2245 | 2018-07-24 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ror42-rubygem-sprockets) | RHSA-2018:2244 | 2018-07-24 |
| CloudForms Management Engine 5.9 | RHSA-2018:2561 | 2018-09-04 |
| Platform | Package | State |
|---|---|---|
| Red Hat Subscription Asset Manager 1 | ruby193-rubygem-sprockets | Will not fix |
| Red Hat Satellite 6 | ruby193-rubygem-sprockets | Not affected |
| Red Hat Ceph Storage 1.3 | ruby193-rubygem-sprockets | Will not fix |
Ensure config.assets.compile = false in production.rb.
Vulmon