GHSA-q99w-j4mj-7hj8 CVE-2018-20028
Contao Information Disclosure via Access Control Flaws
- Severity
- 6.5 / 10
- Medium · CVSS 3.0
- Exploit chance (EPSS)
- 0.91%
- Chance of exploitation in the next 30 days. Higher than 59.88% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-284 Improper Access Control
- Fix
3.5.37- Upgrade contao/contao to this version or later
Description
Contao 3.x before 3.5.37, 4.4.x before 4.4.31 and 4.6.x before 4.6.11 has Incorrect Access Control.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| contao/contao | >= 3.0.0, < 3.5.37 |
3.5.37 |
| contao/contao | >= 4.6.0, < 4.6.11 |
4.6.11 |
| contao/contao | >= 4.4.0, < 4.4.31 |
4.4.31 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
contao/contao Packagist → 3.5.37
- composer
composer require contao/contao:^3.5.37
Severity breakdown
CVSS 3.0 6.5
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-284: Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
How to prevent it
- Architecture and Design, Operation: Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
References
Advisories
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-grm4-wm43-9jh5 Contao: Possible path traversal in job download URIs | Low | Also affects contao/contao |
| GHSA-87mg-5grr-rhwh Contao: Server-Side Request Forgery (SSRF) via Unvalidated RSS Feed URL in Feed Reader Module | Low | Also affects contao/contao |
| GHSA-3mr9-p497-58f6 Contao crawler leaks auth credentials to external hosts | Low | Also affects contao/contao |
| GHSA-qqfq-7cpp-hcqj Contao does not properly manage privileges for page and article fields | Medium | Also affects contao/contao |
| GHSA-w53m-gxvg-vx7p Contao can disclose sensitive information in the news module | Medium | Also affects contao/contao |
| GHSA-2xmj-8wmq-7475 Contao discloses sensitive information in the front end search index | Medium | Also affects contao/contao |
| GHSA-7m47-r75r-cx8v Contao applies improper access control in the back end voters | Medium | Also affects contao/contao |
| GHSA-fp7q-xhhw-6rj3 Path traversal vulnerability in the file manager | Medium | Also affects contao/contao |
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