CSRF in Sma Sunny Boy 1.5

CVE-2017-9863

An issue was discovered in SMA Solar Technology products. If a user simultaneously has Sunny Explorer running and visits a malicious host, cross-site request forgery can be used to change settings in the inverters (for example, issuing a POST request to change the user password). All Sunny Explorer settings available to the authenticated user are also available to the attacker. (In some cases, this also includes changing settings that the user has no access to.) This may result in complete compromise of the device. NOTE: the vendor reports that exploitation is unlikely because Sunny Explorer is used only rarely. Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.007 (49.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-9863?
CVE-2017-9863 is a high-severity vulnerability in Sma Sunny Boy 1.5, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2017-08-05.
How severe is CVE-2017-9863?
High severity. CVSS v3 base score is 8.8 out of 10.