Critical severity · published Oct 13, 2017
CVE-2016-5791
An Improper Authentication issue was discovered in JanTek JTC-200, all versions
9.8
CVSS
2.4%
EPSS
No
On KEV
Description
An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper authentication could provide an undocumented BusyBox Linux shell accessible over the TELNET service without any authentication.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JF
Jtc-200 Firmware · Jantek
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5791
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-5791
Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-283-02
More from Jtc-200 Firmware
8.0
CVE-2016-5789
A Cross-site Request Forgery issue was discovered in JanTek JTC-200, all versions