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

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CVE-2020-9499

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
09/04/2020
Last modified:
19/04/2021

Description

Some Dahua products have buffer overflow vulnerabilities. After the successful login of the legal account, the attacker sends a specific DDNS test command, which may cause the device to go down.

Impact

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

Base Score: 7.20 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
7.20
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:S/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.50
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:dahuasecurity:sd6al_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)
cpe:2.3:h:dahuasecurity:sd6al:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:sd5a_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)
cpe:2.3:h:dahuasecurity:sd5a:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:sd1a_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)
cpe:2.3:h:dahuasecurity:sd1a:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:ptz1a_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)
cpe:2.3:h:dahuasecurity:ptz1a:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:sd50_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)
cpe:2.3:h:dahuasecurity:sd50:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:sd52c_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)
cpe:2.3:h:dahuasecurity:sd52c:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:ipc-hx5842h_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)
cpe:2.3:h:dahuasecurity:ipc-hx5842h:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:ipc-hx7842h_firmware:*:*:*:*:*:*:*:* 2019-12 (excluding)

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


References to Advisories, Solutions, and Tools