CVE-2020-8864
HighThis 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.
Published Mar 23, 2020 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2020-8864 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Dir-867 Firmware (Dlink), Dir-878 Firmware (Dlink), Dir-882 Firmware (Dlink) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 80% probability of exploitation in the next 30 days.
- Fixed versions are available, including Dir-867 Firmware <=1.10b04, Dir-878 Firmware <=1.20b03, Dir-882 Firmware <=1.10b04.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
8.8
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
80%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2020-8864 brief as a PDF
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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.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Dir-867 FirmwareDlink | See advisory | 1.10b04 |
| Dir-878 FirmwareDlink | See advisory | 1.20b03 |
| Dir-882 FirmwareDlink | See advisory | 1.10b04 |
| Multiple Routers | >= 1.10B04 | n/a |
Patched Releases
Dir-867 Firmware
<=1.10b04
Dir-878 Firmware
<=1.20b03
Dir-882 Firmware
<=1.10b04
Timeline
Publicly disclosed
Mar 23, 2020
Last updated
Nov 21, 2024
Weakness Type
- CWE-697 Incorrect Comparison
References
FAQ
Common Questions.
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.
Affected: Dir-867 Firmware (Dlink); Dir-878 Firmware (Dlink); Dir-882 Firmware (Dlink), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Dir-867 Firmware <=1.10b04, Dir-878 Firmware <=1.20b03, Dir-882 Firmware <=1.10b04.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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