CVE-2017-9859 Weak cryptography in n/a
Weak hashing allows offline password cracking, enabling attackers to register unauthorized devices on SMA servers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-9859?
CVE-2017-9859 is a critical vulnerability in n/a, published on 5 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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
Weakness: CWE-327
Which versions are affected by CVE-2017-9859?
It affects 39 products.
Products include Sma Sunny Boy 1.5 Firmware, Sma Sunny Boy 2.5 Firmware, Sma Sunny Boy 3.0 Firmware, Sma Sunny Boy 3.6 Firmware, Sma Sunny Boy 3000tl Firmware, Sma Sunny Boy 3600 Firmware and 33 more.
How do I fix CVE-2017-9859?
No fix has been published for CVE-2017-9859 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-9859 being exploited?
There is no known exploitation of CVE-2017-9859 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-4h9g-54w5-8pgc.