CVE-2020-25754
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered on Enphase Envoy R3.x and D4.x devices. There is a custom PAM module for user authentication that circumvents traditional user authentication. This module uses a password derived from the MD5 hash of the username and serial number. The serial number can be retrieved by an unauthenticated user at /info.xml. Attempts to change the user password via passwd or other tools have no effect.
Overview
- CVE ID
- CVE-2020-25754
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-16T19:15:27
- Last Modified Date
- 2021-06-28T14:25:02
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:enphase:envoy_firmware:d4.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:enphase:envoy_firmware:r3.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:enphase:envoy:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://stage2sec.com | Third Party Advisory |
| https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a | Exploit Third Party Advisory |
| https://enphase.com/en-us/products-and-services/envoy-and-combiner | Product Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-25754 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25754 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:09:44 | Added to TrackCVE | |||
| 2022-12-05 04:33:56 | 2021-06-16T19:15Z | 2021-06-16T19:15:27 | CVE Published Date | updated |
| 2022-12-05 04:33:56 | 2021-06-28T14:25:02 | CVE Modified Date | updated | |
| 2022-12-05 04:33:56 | Analyzed | Vulnerability Status | updated |