CVE-2017-9864 Missing authorization in n/a
Unauthenticated attackers can modify the system time on specific SMA solar inverters, potentially affecting log timestamps and data analysis reliability.
- 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-2017-9864?
CVE-2017-9864 is a high-severity missing authorization 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. An attacker can change the plant time even when not authenticated in any way. This changes the system time, possibly affecting lockout policies and random-number generators based on timestamps, and makes timestamps for data analysis unreliable. NOTE: the vendor reports that this is largely irrelevant because it only affects log-entry timestamps, and because the plant time would later be reset via NTP. (It has never been the case that a lockout policy or random-number generator was affected.) Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected
Which versions are affected by CVE-2017-9864?
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-2017-9864?
No fix has been published for CVE-2017-9864 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2017-9864 being exploited?
There is no known exploitation of CVE-2017-9864 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-w6cm-pp6c-p5vr.