CVE-2017-17974

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-12-29 · updated 2026-06-17

Description

BA SYSTEMS BAS Web on BAS920 devices (with Firmware 01.01.00*, HTTPserv 00002, and Script 02.*) and ISC2000 devices allows remote attackers to obtain sensitive information via a request for isc/get_sid_js.aspx or isc/get_sid.aspx, as demonstrated by obtaining administrative access by subsequently using the credential information for the Supervisor/Administrator account.

Affected products

Basystems Bas920 Firmware: 01.01.00
Basystems Isc2000 Firmware: 01.01.00

References

http://misteralfa-hack.blogspot.cl/2017/12/ba-system-improper-access-control.html
https://github.com/ezelf/baCK_system
http://misteralfa-hack.blogspot.cl/2017/12/ba-system-improper-access-control.html
https://github.com/ezelf/baCK_system

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