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MitreCVE-2019-8950

HistoryFeb 20, 2019 - 4:29 a.m.

CVE-2019-8950

2019-02-2004:29:00

CWE-798

mitre

web.nvd.nist.gov

dnsekakf2

backdoor

dasan h665

firmware 1.46p1-0028

telnet

cve-2019-8950

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.009

Percentile

82.6%

JSON

The backdoor account dnsekakf2$$ in /bin/login on DASAN H665 devices with firmware 1.46p1-0028 allows an attacker to login to the admin account via TELNET.

Affected configurations

Nvd

Node

dasannetworksh665_firmwareMatch1.46p1-0028

AND

dasannetworksh665Match-

VendorProductVersionCPE
dasannetworksh665_firmware1.46p1-0028cpe:2.3:o:dasannetworks:h665_firmware:1.46p1-0028:*:*:*:*:*:*:*
dasannetworksh665-cpe:2.3:h:dasannetworks:h665:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
dasannetworks	h665_firmware	1.46p1-0028	cpe:2.3:o:dasannetworks:h665_firmware:1.46p1-0028:::::::*
dasannetworks	h665	-	cpe:2.3:h:dasannetworks:h665:-:::::::*

References

blog.burghardt.pl/2019/02/dasan-h665-has-vendor-backdoor-built-into-busyboxs-bin-login/

seclists.org/bugtraq/2019/Feb/32

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.009

Percentile

82.6%

JSON

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