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Vulnerability Details :

CVE-2021-27246

Summary
Assigner-zdi
Assigner Org ID-99f1926a-a320-47d8-bbb5-42feb611262e
Published At-14 Apr, 2021 | 15:45
Updated At-03 Aug, 2024 | 20:48
Rejected At-
Credits

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.

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:zdi
Assigner Org ID:99f1926a-a320-47d8-bbb5-42feb611262e
Published At:14 Apr, 2021 | 15:45
Updated At:03 Aug, 2024 | 20:48
Rejected At:
▼CVE Numbering Authority (CNA)

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.

Affected Products
Vendor
TP-Link Systems Inc.TP-Link
Product
AC1750
Versions
Affected
  • 1.0.15 Build 20200628 rel.63501(4341)
Problem Types
TypeCWE IDDescription
CWECWE-121CWE-121: Stack-based Buffer Overflow
Type: CWE
CWE ID: CWE-121
Description: CWE-121: Stack-based Buffer Overflow
Metrics
VersionBase scoreBase severityVector
3.08.0HIGH
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Version: 3.0
Base score: 8.0
Base severity: HIGH
Vector:
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
@0xMitsurugi (Synacktiv), @swapgs (Synacktiv)
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.zerodayinitiative.com/advisories/ZDI-21-215/
x_refsource_MISC
Hyperlink: https://www.zerodayinitiative.com/advisories/ZDI-21-215/
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.zerodayinitiative.com/advisories/ZDI-21-215/
x_refsource_MISC
x_transferred
Hyperlink: https://www.zerodayinitiative.com/advisories/ZDI-21-215/
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:zdi-disclosures@trendmicro.com
Published At:14 Apr, 2021 | 16:15
Updated At:22 Apr, 2021 | 17:45

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.

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
Primary3.18.0HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Secondary3.08.0HIGH
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary2.07.9HIGH
AV:A/AC:M/Au:N/C:C/I:C/A:C
Type: Primary
Version: 3.1
Base score: 8.0
Base severity: HIGH
Vector:
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.0
Base score: 8.0
Base severity: HIGH
Vector:
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.9
Base severity: HIGH
Vector:
AV:A/AC:M/Au:N/C:C/I:C/A:C
CPE Matches
TP-Link Systems Inc.
tp-link
>>ac1750_firmware>>1.0.15
cpe:2.3:o:tp-link:ac1750_firmware:1.0.15:*:*:*:*:*:*:*
TP-Link Systems Inc.
tp-link
>>ac1750>>a7
cpe:2.3:h:tp-link:ac1750:a7:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-121Primaryzdi-disclosures@trendmicro.com
CWE ID: CWE-121
Type: Primary
Source: zdi-disclosures@trendmicro.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.zerodayinitiative.com/advisories/ZDI-21-215/zdi-disclosures@trendmicro.com
Third Party Advisory
VDB Entry
Hyperlink: https://www.zerodayinitiative.com/advisories/ZDI-21-215/
Source: zdi-disclosures@trendmicro.com
Resource:
Third Party Advisory
VDB Entry

Change History

0
Information is not available yet

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