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CVE-2017-9859

Published: Aug 5, 2017Updated: May 13, 2026 Sources: CVE List NVDCWE-327
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.1%
Top 37.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

An issue was discovered in SMA Solar Technology products. The inverters make use of a weak hashing algorithm to encrypt the password for REGISTER requests. This hashing algorithm can be cracked relatively easily. An attacker will likely be able to crack the password using offline crackers. This cracked password can then be used to register at the SMA servers. NOTE: the vendor's position is that "we consider the probability of the success of such manipulation to be extremely low." Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-327

Affected Products

n/an/a
sunny boy 3600 firmwaresmaICS / OT / IoT
sunny boy 5000 firmwaresmaICS / OT / IoT
sunny tripower core1 firmwaresmaICS / OT / IoT
sunny tripower 15000tl firmwaresmaICS / OT / IoT
smacommercialUSICS / OT / IoTaka sunny boy 1.5 firmware, sunny boy 2.5 firmware, sunny boy 3000tl firmware
and 35 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

http://www.sma.de/en/statement-on-cyber-security.html
sma.de
https://horusscenario.com/CVE-information/
horusscenario.com
http://www.sma.de/fileadmin/content/global/specials/documents/cyber-security/Whitepaper-Cyber-Security-AEN1732_07.pdf
sma.de

Timeline

Published
Aug 5, 2017
Last Updated
May 13, 2026

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