CVE-2020-27864

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  2. Vulnerabilities (CVE)
  3. CVE-2020-27864
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the Authorization request header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10880.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

8.3 /10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 6.5 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10197 Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1428/ Third Party Advisory VDB Entry
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:dlink:dap-1860_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dap-1860:ax:*:*:*:*:*:*:*
History

12 Mar 2021, 15:15

Type Values Removed Values Added
Summary This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the Authorization request header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10880. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the Authorization request header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10880.

12 Mar 2021, 14:15

Type Values Removed Values Added
Summary This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the Authorization request header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10880. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the Authorization request header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10880.

16 Feb 2021, 19:10

Type Values Removed Values Added
CPE cpe:2.3:o:dlink:dap-1860_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dap-1860:ax:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 8.3
v3 : 8.8
CWE CWE-77
References (MISC) https://www.zerodayinitiative.com/advisories/ZDI-20-1428/ - (MISC) https://www.zerodayinitiative.com/advisories/ZDI-20-1428/ - Third Party Advisory, VDB Entry
References (MISC) https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10197 - (MISC) https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10197 - Vendor Advisory

12 Feb 2021, 00:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-02-12 00:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-27864

Mitre link : CVE-2020-27864

CVE.ORG link : CVE-2020-27864

JSON object : View

Products Affected

dlink

  • dap-1860
  • dap-1860_firmware
CWE
CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')