Vulnerability in Sma Sunny Boy 1.5
CVE-2017-9859
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
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.011 (63.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-9859?
- CVE-2017-9859 is a critical-severity vulnerability in Sma Sunny Boy 1.5, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 9.8/10. Published 2017-08-05.
- How severe is CVE-2017-9859?
- Critical severity. CVSS v3 base score is 9.8 out of 10.