CVE-2020-8809
CVSS V2 Medium 6.8
CVSS V3 High 8.1
Description
Gurux GXDLMS Director prior to 8.5.1905.1301 downloads updates to add-ins and OBIS code over an unencrypted HTTP connection. A man-in-the-middle attacker can prompt the user to download updates by modifying the contents of gurux.fi/obis/files.xml and gurux.fi/updates/updates.xml. Then, the attacker can modify the contents of downloaded files. In the case of add-ins (if the user is using those), this will lead to code execution. In case of OBIS codes (which the user is always using as they are needed to communicate with the energy meters), this can lead to code execution when combined with CVE-2020-8810.
Overview
- CVE ID
- CVE-2020-8809
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-02-25T19:15:11
- Last Modified Date
- 2020-02-27T19:12:43
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:gurux:device_language_message_specification_director:*:*:*:*:*:*:*:* | 1 | OR | 8.5.1905.1301 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.9
References
Reference URL | Reference Tags |
---|---|
https://github.com/seqred-s-a/gxdlmsdirector-cve | Exploit Third Party Advisory |
https://seqred.pl/en/cve-gurux-gxdlms-director/ | Exploit Third Party Advisory |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-8809 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8809 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 16:48:39 | Added to TrackCVE | |||
2022-12-04 11:47:05 | 2020-02-25T19:15Z | 2020-02-25T19:15:11 | CVE Published Date | updated |
2022-12-04 11:47:05 | 2020-02-27T19:12:43 | CVE Modified Date | updated | |
2022-12-04 11:47:05 | Analyzed | Vulnerability Status | updated |