3.4low
CVE-2017-9856
An issue was discovered in SMA Solar Technology products.
Published 9 y ago · modified 4 mo ago · JSON
CVSS
3.4
v3.1 · CNA
CISA KEV
No
not known exploited
EPSS
0.7%
percentile 52%
Public exploits
0
none known
Summary
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
CISA SSVC assessment
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction (EPSS)
0.66% probability of exploitation in the next 30 days, higher than 52% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CISA ADP | 3.1 | 3.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N |
| CNA | 3.1 | 3.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N |
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- sma sunny_boy_tl-21
- sma sunny_boy_tlst-21
- sma sunny_tripower_tl-10
- sma sunny_tripower_tl-30
Classification
- Weakness
- CWE-256 Plaintext Storage of a Password
References
- sma.de /en/statement-on-cyber-security.html · x_refsource_MISC, x_transferred
- horusscenario.com /CVE-information/ · x_refsource_MISC, x_transferred
- sma.de /fileadmin/content/global/specials/documents/cyber-security/Whitepaper-Cyber-Security-AEN1 · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2017-9856
- NVD: CVE-2017-9856
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