PT-2017-19219 · Sma Solar Technology · Sma Solar Technology Products+2

Willem Westerhof · Published 2017-08-05 · Updated 2024-08-05 · CVE-2017-9853

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 all inverters have a weak password policy for the user and installer password. There are no complexity requirements or length requirements set for passwords. Additionally, strong passwords are impossible due to a maximum of 12 characters and a limited set of characters.

Recommendations For SMA Solar Technology products, consider implementing a stronger password policy with complexity and length requirements. For Sunny Boy TLST-21 and TL-21, and Sunny Tripower TL-10 and TL-30, restrict access to the user and installer password until a stronger password policy can be implemented. As a temporary workaround, consider disabling the default password functionality until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-521

Related Identifiers

CVE-2017-9853

Affected Products

Sma Solar Technology Products

Sunny Boy

Sunny Tripower

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2017-9853 · 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://t.me/cvenotify/89264 · Telegram Post
• https://horusscenario.com/CVE-information · Note