CVE-2020-9499 : Some Dahua products have buffer overflow vulnerabilities. After the successful l

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.

Published 2020-04-09 14:15:13

Updated 2021-04-19 14:57:26

Source Dahua Technologies

View at NVD, CVE.org

Vulnerability category: Overflow

Products affected by CVE-2020-9499

Dahuasecurity » Sd6al Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:sd6al_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Sd6al » Version: N/A
Dahuasecurity » Sd5a Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:sd5a_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Sd5a » Version: N/A
Dahuasecurity » Sd1a Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:sd1a_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Sd1a » Version: N/A
Dahuasecurity » Ptz1a Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:ptz1a_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Ptz1a » Version: N/A
Dahuasecurity » Sd50 Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:sd50_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Sd50 » Version: N/A
Dahuasecurity » Sd52c Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:sd52c_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Sd52c » Version: N/A
Dahuasecurity » Ipc-hx5842h Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:ipc-hx5842h_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Ipc-hx5842h » Version: N/A
Dahuasecurity » Ipc-hx7842h Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:ipc-hx7842h_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Ipc-hx7842h » Version: N/A
Dahuasecurity » Ipc-hx2xxx Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:ipc-hx2xxx_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Ipc-hx2xxx » Version: N/A
Dahuasecurity » Ipc-hxxx5x4x Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:ipc-hxxx5x4x_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » Ipc-hxxx5x4x » Version: N/A
Dahuasecurity » N42b1p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n42b1p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N42b1p » Version: N/A
Dahuasecurity » N42b2p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n42b2p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N42b2p » Version: N/A
Dahuasecurity » N42b3p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n42b3p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N42b3p » Version: N/A
Dahuasecurity » N52a4p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n52a4p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N52a4p » Version: N/A
Dahuasecurity » N54a4p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n54a4p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahua » N54a4p » Version: N/A
Dahuasecurity » N52b2p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n52b2p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N52b2p » Version: N/A
Dahuasecurity » N52b5p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n52b5p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N52b5p » Version: N/A
Dahuasecurity » N52b3p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n52b3p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N52b3p » Version: N/A
Dahuasecurity » N54b2p Firmware
Versions before (<) 2019-12
cpe:2.3:o:dahuasecurity:n54b2p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dahuasecurity » N54b2p » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2020-9499

EPSS FAQ

0.36%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 55 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-9499

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	1.2	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-9499

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-9499

https://www.dahuasecurity.com/support/cybersecurity/details/727

Security Advisory –Denial of Service vulnerability exists in some Dahua products
Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2020-9499

Products affected by CVE-2020-9499

Exploit prediction scoring system (EPSS) score for CVE-2020-9499

CVSS scores for CVE-2020-9499

CWE ids for CVE-2020-9499

References for CVE-2020-9499