Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-27420

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
23/03/2022
Last modified:
01/04/2022

Description

GE UR firmware versions prior to version 8.1x web server task does not properly handle receipt of unsupported HTTP verbs, resulting in the web server becoming temporarily unresponsive after receiving a series of unsupported HTTP requests. When unresponsive, the web server is inaccessible. By itself, this is not particularly significant as the relay remains effective in all other functionality and communication channels.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:ge:multilin_b30_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)
cpe:2.3:h:ge:multilin_b30:-:*:*:*:*:*:*:*
cpe:2.3:o:ge:multilin_b90_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)
cpe:2.3:h:ge:multilin_b90:-:*:*:*:*:*:*:*
cpe:2.3:o:ge:multilin_c60_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)
cpe:2.3:h:ge:multilin_c60:-:*:*:*:*:*:*:*
cpe:2.3:o:ge:multilin_c70_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)
cpe:2.3:h:ge:multilin_c70:-:*:*:*:*:*:*:*
cpe:2.3:o:ge:multilin_c95_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)
cpe:2.3:h:ge:multilin_c95:-:*:*:*:*:*:*:*
cpe:2.3:o:ge:multilin_d30_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)
cpe:2.3:h:ge:multilin_d30:-:*:*:*:*:*:*:*
cpe:2.3:o:ge:multilin_d60_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)
cpe:2.3:h:ge:multilin_d60:-:*:*:*:*:*:*:*
cpe:2.3:o:ge:multilin_f35_firmware:*:*:*:*:*:*:*:* 8.10 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools