CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
40.1%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
subaru | starlink_2017 | - | cpe:2.3:h:subaru:starlink_2017:-:*:*:*:*:*:*:* |
subaru | starlink_2017_firmware | - | cpe:2.3:o:subaru:starlink_2017_firmware:-:*:*:*:*:*:*:* |
subaru | starlink_2018 | - | cpe:2.3:h:subaru:starlink_2018:-:*:*:*:*:*:*:* |
subaru | starlink_2018_firmware | - | cpe:2.3:o:subaru:starlink_2018_firmware:-:*:*:*:*:*:*:* |
subaru | starlink_2019 | - | cpe:2.3:h:subaru:starlink_2019:-:*:*:*:*:*:*:* |
subaru | starlink_2019_firmware | - | cpe:2.3:o:subaru:starlink_2019_firmware:-:*:*:*:*:*:*:* |
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
40.1%