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CVE-2020-8809

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.

CVE Details

CVSS v3.1 Score8.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published2/25/2020

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

gurux:device_language_message_specification_director

Weaknesses (CWE)

CWE-494

References

https://github.com/seqred-s-a/gxdlmsdirector-cve(cve@mitre.org)

https://seqred.pl/en/cve-gurux-gxdlms-director/(cve@mitre.org)

https://github.com/seqred-s-a/gxdlmsdirector-cve(af854a3a-2127-422b-91ae-364da2661108)

https://seqred.pl/en/cve-gurux-gxdlms-director/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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