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Vulnerability Details :

CVE-2021-3297

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-26 Jan, 2021 | 07:11
Updated At-03 Aug, 2024 | 16:53
Rejected At-
Credits

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

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:26 Jan, 2021 | 07:11
Updated At:03 Aug, 2024 | 16:53
Rejected At:
▼CVE Numbering Authority (CNA)

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

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.zyxel.com/us/en/support/security_advisories.shtml
x_refsource_MISC
https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105
x_refsource_MISC
https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass
x_refsource_MISC
Hyperlink: https://www.zyxel.com/us/en/support/security_advisories.shtml
Resource:
x_refsource_MISC
Hyperlink: https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105
Resource:
x_refsource_MISC
Hyperlink: https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.zyxel.com/us/en/support/security_advisories.shtml
x_refsource_MISC
x_transferred
https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105
x_refsource_MISC
x_transferred
https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass
x_refsource_MISC
x_transferred
Hyperlink: https://www.zyxel.com/us/en/support/security_advisories.shtml
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:26 Jan, 2021 | 18:16
Updated At:03 Feb, 2021 | 22:58

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

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary2.07.2HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
Type: Primary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.2
Base severity: HIGH
Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
CPE Matches

Zyxel Networks Corporation
zyxel
>>nbg2105_firmware>>v1.00\(aagu.2\)c0
cpe:2.3:o:zyxel:nbg2105_firmware:v1.00\(aagu.2\)c0:*:*:*:*:*:*:*
Zyxel Networks Corporation
zyxel
>>nbg2105>>-
cpe:2.3:h:zyxel:nbg2105:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-287Primarynvd@nist.gov
CWE ID: CWE-287
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypasscve@mitre.org
Exploit
Third Party Advisory
https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105cve@mitre.org
Product
Vendor Advisory
https://www.zyxel.com/us/en/support/security_advisories.shtmlcve@mitre.org
Vendor Advisory
Hyperlink: https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass
Source: cve@mitre.org
Resource:
Exploit
Third Party Advisory
Hyperlink: https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105
Source: cve@mitre.org
Resource:
Product
Vendor Advisory
Hyperlink: https://www.zyxel.com/us/en/support/security_advisories.shtml
Source: cve@mitre.org
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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Known To Be Used In Ransomware Campaigns?-Not Available
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CWE ID-CWE-287
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