CVE-2018-18558
CVSS V2 Medium 6.9
CVSS V3 Medium 6.4
Description
An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that overwrites a bootloader code segment in process_segment in components/bootloader_support/src/esp_image_format.c. The attack is effective when the flash encryption feature is not enabled, or if the attacker finds a different vulnerability that allows them to write this binary to flash memory.
Overview
- CVE ID
- CVE-2018-18558
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-05-13T13:29:02
- Last Modified Date
- 2019-05-14T17:55:58
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:* | 1 | OR | 2.0 | 3.0.6 |
| cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:* | 1 | OR | 3.1 | 3.1.1 |
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://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_(CVE-2018-18558) | Release Notes Vendor Advisory |
| https://github.com/espressif/esp-idf/releases | Release Notes Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-18558 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18558 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:52:49 | Added to TrackCVE | |||
| 2022-12-03 20:34:57 | 2019-05-13T13:29Z | 2019-05-13T13:29:02 | CVE Published Date | updated |
| 2022-12-03 20:34:57 | 2019-05-14T17:55:58 | CVE Modified Date | updated | |
| 2022-12-03 20:34:57 | Analyzed | Vulnerability Status | updated |