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CVE-2021-34862

Published: Oct 25, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-121
8.8HIGH
NVD MITRE
EPSS Score
0.8%
Top 47.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 1.01rc001 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the var:menu parameter provided to the webproc endpoint. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13270.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-121

Affected Products

D-Link Corp.
commercial·TWaka dlink, d-link international, d-link corporation
dap-2020 firmware
Networking Infrastructure
DAP-2020
Networking Infrastructure
D-Link
commercial·TW
DAP-2020
Networking Infrastructure

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201
supportannouncement.us.dlink.com
https://www.zerodayinitiative.com/advisories/ZDI-21-978/
zerodayinitiative.com
https://nvd.nist.gov/vuln/detail/CVE-2021-34862
nvd.nist.gov
and 1 more references View all →

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