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[email protected]CVE-2021-3297

HistoryJan 26, 2021 - 6:16 p.m.

CVE-2021-3297

2021-01-2618:16:29

CWE-287

[email protected]

web.nvd.nist.gov

cve-2021-3297

zyxel

nbg2105

v1.00(aagu.2)c0

security vulnerability

admin access

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.359 Low

EPSS

Percentile

97.2%

JSON

On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.

Affected configurations

NVD

Node

zyxelnbg2105_firmwareMatchv1.00\(aagu.2\)c0

AND

zyxelnbg2105Match-

CPENameOperatorVersion
zyxel:nbg2105_firmwarezyxel nbg2105 firmwareeqv1.00\(aagu.2\)c0

CPE	Name	Operator	Version
zyxel:nbg2105_firmware	zyxel nbg2105 firmware	eq	v1.00\(aagu.2\)c0

References

github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass

www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105

www.zyxel.com/us/en/support/security_advisories.shtml

Social References

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.359 Low

EPSS

Percentile

97.2%

JSON

Related for CVE-2021-3297

cvelist1 nvd1 prion1 nuclei1