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

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CVE-2021-20844

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
24/11/2021
Last modified:
30/11/2021

Description

Improper neutralization of HTTP request headers for scripting syntax vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier, NVR510 Rev.15.01.18 and earlier, NVR700W Rev.15.00.19 and earlier, and RTX1210 Rev.14.01.38 and earlier allows a remote authenticated attacker to obtain sensitive information via a specially crafted web page.

Impact

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

Base Score: 5.70 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

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

Base Score 3.x
5.70
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:M/Au:S/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 3.50 LOW
Vector: AV:N/AC:M/Au:S/C:P/I:N/A:N

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

Base Score 2.0
3.50
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:yamaha:rtx830_firmware:*:*:*:*:*:*:*:* 15.02.17 (including)
cpe:2.3:h:yamaha:rtx830:-:*:*:*:*:*:*:*
cpe:2.3:o:yamaha:nvr510_firmware:*:*:*:*:*:*:*:* 15.01.18 (including)
cpe:2.3:h:yamaha:nvr510:-:*:*:*:*:*:*:*
cpe:2.3:o:yamaha:nvr700w_firmware:*:*:*:*:*:*:*:* 15.00.19 (including)
cpe:2.3:h:yamaha:nvr700w:-:*:*:*:*:*:*:*
cpe:2.3:o:yamaha:rtx1210_firmware:*:*:*:*:*:*:*:* 14.01.38 (including)
cpe:2.3:h:yamaha:rtx1210:-:*:*:*:*:*:*:*
cpe:2.3:o:ntt-west:biz_box_rtx830_firmware:*:*:*:*:*:*:*:* 15.02.17 (including)
cpe:2.3:h:ntt-west:biz_box_rtx830:-:*:*:*:*:*:*:*
cpe:2.3:o:ntt-west:biz_box_nvr510_firmware:*:*:*:*:*:*:*:* 15.01.18 (excluding)
cpe:2.3:h:ntt-west:biz_box_nvr510:-:*:*:*:*:*:*:*
cpe:2.3:o:ntt-west:biz_box_nvr700w_firmware:*:*:*:*:*:*:*:* 15.00.19 (including)
cpe:2.3:h:ntt-west:biz_box_nvr700w:-:*:*:*:*:*:*:*
cpe:2.3:o:ntt-west:biz_box_rtx1210_firmware:*:*:*:*:*:*:*:* 14.01.38 (including)

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


References to Advisories, Solutions, and Tools