Input validation error in GE products - CVE-2021-27420

Vulnerability identifier: #VU51527

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-27420

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the UR Firmware web server task does not properly handle receipt of unsupported HTTP verbst. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

G30
T60
T35
N60
M60
L90
L60
L30
G60
B30
F60
F35
D60
D30
C95
C70
C60
C30

Install updates from vendor's website.

G30 - update to 8.10
T60 - update to 8.10
T35 - update to 8.10
N60 - update to 8.10
M60 - update to 8.10
L90 - update to 8.10
L60 - update to 8.10
L30 - update to 8.10
G60 - update to 8.10
B30 - update to 8.10
F60 - update to 8.10
F35 - update to 8.10
D60 - update to 8.10
D30 - update to 8.10
C95 - update to 8.10
C70 - update to 8.10
C60 - update to 8.10
C30 - update to 8.10

• https://ics-cert.us-cert.gov/advisories/icsa-21-075-02

• Multiple vulnerabilities in GE UR family