PT-2017-19222 · Sma Solar Technology · Sma Solar Technology Products+2

Willem Westerhof · Published 2017-08-05 · Updated 2024-08-05 · CVE-2017-9856

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions SMA Solar Technology products (affected versions not specified) Sunny Boy versions TLST-21 and TL-21 Sunny Tripower versions TL-10 and TL-30

Description An issue was discovered in SMA Solar Technology products where sniffed passwords from SMAdata2+ communication can be decrypted easily due to a simple encryption algorithm. This allows an attacker to find the plaintext passwords and authenticate to the device.

Recommendations For Sunny Boy versions TLST-21 and TL-21, consider restricting access to SMAdata2+ communication until a secure encryption method is implemented. For Sunny Tripower versions TL-10 and TL-30, avoid using the simple encryption algorithm for password protection and explore alternative secure authentication methods. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-256

Related Identifiers

CVE-2017-9856

Affected Products

Sma Solar Technology Products

Sunny Boy

Sunny Tripower

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2017-9856 · Security Note
• http://sma.de/en/statement-on-cyber-security.html · Note
• http://sma.de/fileadmin/content/global/specials/documents/cyber-security/Whitepaper-Cyber-Security-AEN1732_07.pdf · Note
• https://horusscenario.com/CVE-information · Note
• https://t.me/cvenotify/81985 · Telegram Post