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[email protected]CVE-2021-27179

HistoryFeb 10, 2021 - 7:15 p.m.

CVE-2021-27179

2021-02-1019:15:15

CWE-20

[email protected]

web.nvd.nist.gov

cve-2021-27179

fiberhome hg6245d

telnet daemon

security issue

vulnerability

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.8%

JSON

An issue was discovered on FiberHome HG6245D devices through RP2613. It is possible to crash the telnet daemon by sending a certain 0a 65 6e 61 62 6c 65 0a 02 0a 1a 0a string.

Affected configurations

NVD

Node

fiberhomehg6245d_firmwareRange≤rp2613

AND

fiberhomehg6245dMatch-

CPENameOperatorVersion
fiberhome:hg6245d_firmwarefiberhome hg6245d firmwarelerp2613

CPE	Name	Operator	Version
fiberhome:hg6245d_firmware	fiberhome hg6245d firmware	le	rp2613

References

pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#telnet-cli-dos

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.8%

JSON

Related for CVE-2021-27179

prion1 nvd1 cvelist1