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MitreCVE-2019-12223

HistorySep 05, 2019 - 3:15 p.m.

CVE-2019-12223

2019-09-0515:15:11

CWE-119

mitre

web.nvd.nist.gov

cve-2019-12223

nvr

webviewer

buffer overflow

hanwah techwin

srn-472s

security vulnerability

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.8

Confidence

High

EPSS

0.003

Percentile

71.1%

JSON

An issue was discovered in NVR WebViewer on Hanwah Techwin SRN-472s 1.07_190502 devices, and other SRN-x devices before 2019-05-03. A system crash and reboot can be achieved by submitting a long username in excess of 117 characters. The username triggers a buffer overflow in the main process controlling operation of the DVR system, rendering services unavailable during the reboot operation. A repeated attack affects availability as long as the attacker has network access to the device.

Affected configurations

Nvd

Node

hanwha-securitysrn-472s_firmwareMatch1.07_190502

AND

hanwha-securitysrn-472sMatch-

Node

hanwha-securitysrn-873s_firmwareRange<2019-05-03

AND

hanwha-securitysrn-873sMatch-

Node

hanwha-securitysrn-1673s_firmwareRange<2019-05-03

AND

hanwha-securitysrn-1673sMatch-

VendorProductVersionCPE
hanwha-securitysrn-472s_firmware1.07_190502cpe:2.3:o:hanwha-security:srn-472s_firmware:1.07_190502:*:*:*:*:*:*:*
hanwha-securitysrn-472s-cpe:2.3:h:hanwha-security:srn-472s:-:*:*:*:*:*:*:*
hanwha-securitysrn-873s_firmware*cpe:2.3:o:hanwha-security:srn-873s_firmware:*:*:*:*:*:*:*:*
hanwha-securitysrn-873s-cpe:2.3:h:hanwha-security:srn-873s:-:*:*:*:*:*:*:*
hanwha-securitysrn-1673s_firmware*cpe:2.3:o:hanwha-security:srn-1673s_firmware:*:*:*:*:*:*:*:*
hanwha-securitysrn-1673s-cpe:2.3:h:hanwha-security:srn-1673s:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
hanwha-security	srn-472s_firmware	1.07_190502	cpe:2.3:o:hanwha-security:srn-472s_firmware:1.07_190502:::::::*
hanwha-security	srn-472s	-	cpe:2.3:h:hanwha-security:srn-472s:-:::::::*
hanwha-security	srn-873s_firmware	*	cpe:2.3:o:hanwha-security:srn-873s_firmware::::::::
hanwha-security	srn-873s	-	cpe:2.3:h:hanwha-security:srn-873s:-:::::::*
hanwha-security	srn-1673s_firmware	*	cpe:2.3:o:hanwha-security:srn-1673s_firmware::::::::
hanwha-security	srn-1673s	-	cpe:2.3:h:hanwha-security:srn-1673s:-:::::::*

References

gist.github.com/dustinnoe/66f91573a0080c9fb2c21819d8805a82

medium.com/%40noe.dustin/samsung-webviewer-remote-dos-vulberability-cve-2019-12223-5f4afbc83fbd

www.hanwha-security.com/en/products/video-recorder/nvr/ch4/SRN-472S/overview/

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.8

Confidence

High

EPSS

0.003

Percentile

71.1%

JSON

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