Vulnerability CVE-2017-9861


Published: 2017-08-05

Description:
** DISPUTED ** An issue was discovered in SMA Solar Technology products. The SIP implementation does not properly use authentication with encryption: it is vulnerable to replay attacks, packet injection attacks, and man in the middle attacks. An attacker is able to successfully use SIP to communicate with the device from anywhere within the LAN. An attacker may use this to crash the device, stop it from communicating with the SMA servers, exploit known SIP vulnerabilities, or find sensitive information from the SIP communications. Furthermore, because the SIP communication channel is unencrypted, an attacker capable of understanding the protocol can eavesdrop on communications. For example, passwords can be extracted. NOTE: the vendor's position is that authentication with encryption is not required on an isolated subnetwork. Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected.

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
9/10
8.5/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Complete
Affected software
SMA -> Sunny boy 5000 firmware 
SMA -> Sunny central 800cp xt firmware 
SMA -> Sunny boy 3000tl firmware 
SMA -> Sunny central storage 1000 firmware 
SMA -> Sunny central storage 760 firmware 
SMA -> Sunny tripower 25000tl firmware 
SMA -> Sunny boy 4000tl firmware 
SMA -> Sunny boy 5.0 firmware 
SMA -> Sunny central 630cp xt firmware 
SMA -> Sunny central storage 2200 firmware 
SMA -> Sunny tripower 12000tl firmware 
SMA -> Sunny boy 4.0 firmware 
SMA -> Sunny boy 2.5 firmware 
SMA -> Sunny central storage 630 firmware 
SMA -> Sunny central 500cp xt firmware 
SMA -> Sunny boy 3.6 firmware 
SMA -> Sunny central storage 500 firmware 
SMA -> Sunny central storage 800 firmware 
SMA -> Sunny central 1000cp xt firmware 
SMA -> Sunny central 850cp xt firmware 
SMA -> Sunny central storage 900 firmware 
SMA -> Sunny central 900cp xt firmware 
SMA -> Sunny tripower 20000tl firmware 
SMA -> Sunny boy 5000tl firmware 
SMA -> Sunny tripower core1 firmware 
SMA -> Sunny boy storage 2.5 firmware 
SMA -> Sunny tripower 5000tl firmware 
SMA -> Sunny central storage 720 firmware 
SMA -> Sunny central 2200 firmware 
SMA -> Sunny boy 3600tl firmware 
SMA -> Sunny central 760cp xt firmware 
SMA -> Sunny central storage 2500-ev firmware 
SMA -> Sunny central 720cp xt firmware 
SMA -> Sunny boy 3.0 firmware 
SMA -> Sunny boy 1.5 firmware 
SMA -> Sunny tripower 15000tl firmware 
SMA -> Sunny boy 3600 firmware 
SMA -> Sunny central storage 850 firmware 
SMA -> Sunny tripower 60 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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