Vulnerability CVE-2017-9856


Published: 2017-08-05

Description:
** DISPUTED ** An issue was discovered in SMA Solar Technology products. Sniffed passwords from SMAdata2+ communication can be decrypted very easily. The passwords are "encrypted" using a very simple encryption algorithm. This enables an attacker to find the plaintext passwords and authenticate to the device. NOTE: the vendor reports that only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected.

Type:

CWE-noinfo

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
SMA -> Sunny central storage 630 firmware 
SMA -> Sunny central 850cp xt firmware 
SMA -> Sunny boy 5000 firmware 
SMA -> Sunny boy storage 2.5 firmware 
SMA -> Sunny central 720cp xt firmware 
SMA -> Sunny central storage 1000 firmware 
SMA -> Sunny boy 1.5 firmware 
SMA -> Sunny central 760cp xt firmware 
SMA -> Sunny central 1000cp xt firmware 
SMA -> Sunny boy 3000tl firmware 
SMA -> Sunny tripower 5000tl firmware 
SMA -> Sunny boy 3.6 firmware 
SMA -> Sunny central storage 500 firmware 
SMA -> Sunny tripower 15000tl firmware 
SMA -> Sunny boy 3600 firmware 
SMA -> Sunny central storage 760 firmware 
SMA -> Sunny tripower 60 firmware 
SMA -> Sunny central 630cp xt firmware 
SMA -> Sunny boy 4000tl firmware 
SMA -> Sunny central storage 2200 firmware 
SMA -> Sunny boy 3600tl firmware 
SMA -> Sunny central storage 800 firmware 
SMA -> Sunny tripower 20000tl firmware 
SMA -> Sunny central 2200 firmware 
SMA -> Sunny tripower 12000tl firmware 
SMA -> Sunny boy 2.5 firmware 
SMA -> Sunny central 800cp xt firmware 
SMA -> Sunny central 500cp xt firmware 
SMA -> Sunny central storage 850 firmware 
SMA -> Sunny central storage 2500-ev firmware 
SMA -> Sunny tripower 25000tl firmware 
SMA -> Sunny boy 5000tl firmware 
SMA -> Sunny central storage 900 firmware 
SMA -> Sunny central 900cp xt firmware 
SMA -> Sunny tripower core1 firmware 
SMA -> Sunny boy 5.0 firmware 
SMA -> Sunny boy 4.0 firmware 
SMA -> Sunny boy 3.0 firmware 
SMA -> Sunny central storage 720 firmware 

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

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