CVE-2017-9856
LOWCVSS 3.4/10EPSS 0.66%
Last modified
CVE-2017-9856 is a low-severity vulnerability rated 3.4/10 on the CVSS scale. An issue was discovered in SMA Solar Technology products. Sniffed passwords from SMAdata2+ communication can be decrypted very easily. EPSS estimates a 0.66% chance of exploitation in the next 30 days.
Description
An issue was discovered in SMA Solar Technology products. Sniffed passwords from SMAdata2+ communication can be decrypted very easily. The passwords are "encrypted" using a very simple encryption algorithm. This enables an attacker to find the plaintext passwords and authenticate to the device. NOTE: the vendor reports that only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sma | Sunny Boy 3600 Firmware | All versions |
| Sma | Sunny Boy 5000 Firmware | All versions |
| Sma | Sunny Tripower Core1 Firmware | All versions |
| Sma | Sunny Tripower 15000tl Firmware | All versions |
| Sma | Sunny Tripower 20000tl Firmware | All versions |
| Sma | Sunny Tripower 25000tl Firmware | All versions |
| Sma | Sunny Tripower 5000tl Firmware | All versions |
| Sma | Sunny Tripower 12000tl Firmware | All versions |
| Sma | Sunny Tripower 60 Firmware | All versions |
| Sma | Sunny Boy 3000tl Firmware | All versions |
| Sma | Sunny Boy 3600tl Firmware | All versions |
| Sma | Sunny Boy 4000tl Firmware | All versions |
| Sma | Sunny Boy 5000tl Firmware | All versions |
| Sma | Sunny Boy 1.5 Firmware | All versions |
| Sma | Sunny Boy 2.5 Firmware | All versions |
| Sma | Sunny Boy 3.0 Firmware | All versions |
| Sma | Sunny Boy 3.6 Firmware | All versions |
| Sma | Sunny Boy 4.0 Firmware | All versions |
| Sma | Sunny Boy 5.0 Firmware | All versions |
| Sma | Sunny Central 2200 Firmware | All versions |
| Sma | Sunny Central 1000cp Xt Firmware | All versions |
| Sma | Sunny Central 800cp Xt Firmware | All versions |
| Sma | Sunny Central 850cp Xt Firmware | All versions |
| Sma | Sunny Central 900cp Xt Firmware | All versions |
| Sma | Sunny Central 500cp Xt Firmware | All versions |
| Sma | Sunny Central 630cp Xt Firmware | All versions |
| Sma | Sunny Central 720cp Xt Firmware | All versions |
| Sma | Sunny Central 760cp Xt Firmware | All versions |
| Sma | Sunny Central Storage 500 Firmware | All versions |
| Sma | Sunny Central Storage 630 Firmware | All versions |
| Sma | Sunny Central Storage 720 Firmware | All versions |
| Sma | Sunny Central Storage 760 Firmware | All versions |
| Sma | Sunny Central Storage 800 Firmware | All versions |
| Sma | Sunny Central Storage 850 Firmware | All versions |
| Sma | Sunny Central Storage 900 Firmware | All versions |
| Sma | Sunny Central Storage 1000 Firmware | All versions |
| Sma | Sunny Central Storage 2200 Firmware | All versions |
| Sma | Sunny Central Storage 2500-Ev Firmware | All versions |
| Sma | Sunny Boy Storage 2.5 Firmware | All versions |
References
- https://horusscenario.com/CVE-information/Third Party Advisory
- https://horusscenario.com/CVE-information/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-9856?
An issue was discovered in SMA Solar Technology products. Sniffed passwords from SMAdata2+ communication can be decrypted very easily. The passwords are "encrypted" using a very simple encryption algorithm. This enables an attacker to find the plaintext passwords and authenticate to the device. NOTE: the vendor reports that only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected
How severe is CVE-2017-9856?
CVE-2017-9856 has a CVSS score of 3.4/10 (LOW severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.
How do I fix CVE-2017-9856?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2017-9856?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST