Quantum Secular Labs / Blog / Advisories
CVE-2018-9467: Google Android: Incorrect Default Permissions
CVE-2018-9467 is rated critical with a CVSS v3.1 base score of 9.8 and NVD lists Google Android as the affected product. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
In the getHost() function of UriTest.java, there is the possibility of incorrect web origin determination. This could lead to incorrect security decisions with no additional execution privileges needed. User interaction is not needed for exploitation.
Severity breakdown
CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-276: Incorrect Default Permissions
During installation, installed file permissions are set to allow anyone to modify those files.
Affected products
- Google Android: 7.0; 7.1.1; 7.1.2; 8.0; 8.1; 9.0