CVE-2018-18203
CVSS V2 Medium 6.9
CVSS V3 Medium 6.4
Description
A vulnerability in the update mechanism of Subaru StarLink Harman head units 2017, 2018, and 2019 may give an attacker (with physical access to the vehicle's USB ports) the ability to rewrite the firmware of the head unit. This occurs because the device accepts modified QNX6 filesystem images (as long as the attacker obtains access to certain Harman decryption/encryption code) as a consequence of a bug where unsigned images pass a validity check. An attacker could potentially install persistent malicious head unit firmware and execute arbitrary code as the root user.
Overview
- CVE ID
- CVE-2018-18203
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2018-11-28T23:29:00
- Last Modified Date
- 2019-02-05T20:25:35
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:subaru:starlink_2017_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:subaru:starlink_2017:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:subaru:starlink_2018_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:subaru:starlink_2018:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:subaru:starlink_2019_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:subaru:starlink_2019:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:M/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 6.9
- Severity
- MEDIUM
- Exploitability Score
- 3.4
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- PHYSICAL
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.4
- Base Severity
- MEDIUM
- Exploitability Score
- 0.5
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/sgayou/subaru_starlink_research | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-18203 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18203 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:59:23 | Added to TrackCVE | |||
| 2022-12-03 14:49:28 | 2018-11-28T23:29Z | 2018-11-28T23:29:00 | CVE Published Date | updated |
| 2022-12-03 14:49:28 | 2019-02-05T20:25:35 | CVE Modified Date | updated | |
| 2022-12-03 14:49:28 | Analyzed | Vulnerability Status | updated |