High severity · published Mar 23, 2020
CVE-2020-8864
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04
8.8
CVSS
81.7%
EPSS
No
On KEV
Description
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of empty passwords. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9471.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)81.7% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dir-867 Firmware · Dlink
through 1.10b04 · source: NVD
DF
Dir-878 Firmware · Dlink
through 1.20b03 · source: NVD
DF
Dir-882 Firmware · Dlink
through 1.10b04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8864
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8864
Vendor Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-268/
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