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CVE-2017-9856

LowCVSS 3.4/10Last modified Jun 17, 2026

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 3.4/10CVSS: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
n/a	n/a	n/a
sma	sunny_boy_tl-21	*
sma	sunny_boy_tlst-21	*
sma	sunny_tripower_tl-10	*
sma	sunny_tripower_tl-30	*

References

Timeline

Published: Aug 5, 2017
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2017

CVE-2017-98578.1An issue was discovered in SMA Solar Technology products. The SMAdata2+ communication protocol does not properly use authentication with enc CVE-2017-98587.5An issue was discovered in SMA Solar Technology products. By sending crafted packets to an inverter and observing the response, active and i CVE-2017-98599.8An issue was discovered in SMA Solar Technology products. The inverters make use of a weak hashing algorithm to encrypt the password for REG CVE-2017-98609.8An issue was discovered in SMA Solar Technology products. An attacker can use Sunny Explorer or the SMAdata2+ network protocol to update the CVE-2017-98619.8An issue was discovered in SMA Solar Technology products. The SIP implementation does not properly use authentication with encryption: it is CVE-2017-98627.5An issue was discovered in SMA Solar Technology products. When signed into Sunny Explorer with a wrong password, it is possible to create a CVE-2017-98638.8An issue was discovered in SMA Solar Technology products. If a user simultaneously has Sunny Explorer running and visits a malicious host, c CVE-2017-98647.5An issue was discovered in SMA Solar Technology products. An attacker can change the plant time even when not authenticated in any way. This CVE-2017-98655.5The function GfxImageColorMap::getGray in GfxState.cc in Poppler 0.54.0 allows remote attackers to cause a denial of service (stack-based bu CVE-2017-98685.5In Mosquitto through 1.4.12, mosquitto.db (aka the persistence file) is world readable, which allows local users to obtain sensitive MQTT to CVE-2017-98695.5The II_step_one function in layer2.c in mpglib, as used in libmpgdecoder.a in LAME 3.99.5 and other products, allows remote attackers to cau CVE-2017-98705.5The III_i_stereo function in layer3.c in mpglib, as used in libmpgdecoder.a in LAME 3.99.5 and other products, allows remote attackers to ca

CVE-2017-9856: Low severity, CVSS 3.4 | Vulnix