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CVE-2018-21081: Google Android: Incorrect Permission Assignment for Critical Resource
CVE-2018-21081 is rated critical with a CVSS v3.1 base score of 9.1 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.
Vulnerability description
An issue was discovered on Samsung mobile devices with N(7.x) software. In Dual Messenger, the second app can use the runtime permissions of the first app without a user's consent. The Samsung ID is SVE-2017-11018 (March 2018).
Severity breakdown
CVSS v3.1 9.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- 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: None. No effect on availability.
Underlying weakness
CWE-732: Incorrect Permission Assignment for Critical Resource
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Affected products
- Google Android: 7.0; 7.1.0; 7.1.1; 7.1.2