SB2020022106 - Multiple vulnerabilities in Honeywell NOTI-FIRE-NET Web Server (NWS-3)

Description

This security bulletin contains information about 2 vulnerabilities.

1) Authentication Bypass by Capture-replay (CVE-ID: CVE-2020-6972)

CWE-ID: CWE-294 - Authentication Bypass by Capture-replay

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to bypass authentication on the target system.

The vulnerability exists due to the Fire Web Server’s authentication may be bypassed by a capture-replay attack from a web browser. A remote attacker can bypass web server authentication methods.

2) Path traversal (CVE-ID: CVE-2020-6974)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and bypass access to restricted directories.

Remediation

Install update from vendor's website.

References

• https://ics-cert.us-cert.gov/advisories/icsa-20-051-03
• https://www.notifier.com.au/notices/Security_Notification_SN_2020-02-04_Rev_01_Notifier.pdf