6.4
MEDIUM
CVE-2018-18203
Subaru StarLink Harman Head Units Firmware Rewrite Vulnerability
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.

INFO

Published Date :

Nov. 28, 2018, 11:29 p.m.

Last Modified :

Nov. 21, 2024, 3:55 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.5
Public PoC/Exploit Available at Github

CVE-2018-18203 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2018-18203 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Subaru starlink_2017_firmware
2 Subaru starlink_2018_firmware
3 Subaru starlink_2019_firmware
4 Subaru starlink_2017
5 Subaru starlink_2018
6 Subaru starlink_2019
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-18203.

URL Resource
https://github.com/sgayou/subaru_starlink_research Exploit Third Party Advisory
https://github.com/sgayou/subaru_starlink_research Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 5 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : June 10, 2024, 7:20 a.m. This repo has been linked 1 different CVEs too.

Subaru StarLink persistent root code execution.

exploitation vulnerability-research jailbreak reverse-engineering

Updated: 3 weeks, 2 days ago
554 stars 67 fork 67 watcher
Born at : Nov. 28, 2018, 4:20 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-18203 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-18203 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 05, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/sgayou/subaru_starlink_research No Types Assigned https://github.com/sgayou/subaru_starlink_research Exploit, Third Party Advisory
    Added CWE CWE-347
    Added CPE Configuration AND OR *cpe:2.3:o:subaru:starlink_2017_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:subaru:starlink_2017:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:subaru:starlink_2018_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:subaru:starlink_2018:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:subaru:starlink_2019_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:subaru:starlink_2019:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-18203 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-18203 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.00%

score

0.38327

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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