Authentication Bypass in D-Link Routers Leading to Arbitrary Code Execution
CVE-2020-8864

8.8HIGH

Key Information:

Vendor

D-link
Status
Multiple Routers
Vendor
CVE Published:
23 March 2020

What is CVE-2020-8864?

This vulnerability enables network-adjacent attackers to bypass authentication on specific D-Link router models, including DIR-867, DIR-878, and DIR-882, running firmware version 1.10B04. The flaw arises from improper handling of empty passwords within the HNAP login request process. As a result, attackers can exploit this vulnerability to execute arbitrary code on the affected routers, potentially compromising the device's functionality and user data. Reference information can be found on the Zero Day Initiative's advisory page and D-Link's support announcement.

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Affected Version(s)

Multiple Routers 1.10B04

References

https://www.zerodayinitiative.com/advisories/ZDI-20-268/
x_refsource_MISC
https://supportannouncement.us.dlink.com/announcement/pub...
x_refsource_MISC

EPSS Score

11% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

chung96vn - Security Researcher of VinCSS (Member of Vingroup)
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