8.8
HIGH
CVE-2020-27864
D-Link DAP-1860 HNAP Authorization Header Code Execution Vulnerability
Description

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.

INFO

Published Date :

Feb. 12, 2021, 12:15 a.m.

Last Modified :

Nov. 21, 2024, 5:21 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2020-27864 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Dlink dap-1860_firmware
2 Dlink dap-1860
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-27864.

URL 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
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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-27864 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-27864 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10197
    Added Reference https://www.zerodayinitiative.com/advisories/ZDI-20-1428/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Mar. 25, 2021

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 12, 2021

    Action Type Old Value New Value
    Changed Description 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.
  • CVE Modified by [email protected]

    Mar. 12, 2021

    Action Type Old Value New Value
    Changed Description 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.
  • Initial Analysis by [email protected]

    Feb. 16, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10197 No Types Assigned https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10197 Vendor Advisory
    Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-20-1428/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-20-1428/ Third Party Advisory, VDB Entry
    Added CWE NIST CWE-77
    Added CPE Configuration AND OR *cpe:2.3:o:dlink:dap-1860_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.04b03 OR cpe:2.3:h:dlink:dap-1860:ax:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-27864 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.28 }} -0.05%

score

0.67581

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability