Auth bypass in Dlink Dir-817lw A1
CVE-2019-17506
There are some web interfaces without authentication requirements on D-Link DIR-868L B1-2.03 and DIR-817LW A1-1.04 routers. An attacker can get the router's username and password (and other information) via a DEVICE.ACCOUNT value for SERVICES in conjunction with AUTHORIZED_GROUP=1%0a to getcfg.php. This could be used to control the router remotely.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.564 (99.1th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.564 · newest: 0.564 · change: 0.000
Affected products
- Dlink Dir-817lw A1
- Dlink Dir-817lw A1 Firmware — versions 1.04
- Dlink Dir-868l B1
- Dlink Dir-868l B1 Firmware — versions 2.03
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/dahua966/Routers-vuls/blob/master/DIR-868/name&passwd.py (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17506?
- CVE-2019-17506 is a critical-severity vulnerability in Dlink Dir-817lw A1, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2019-10-11.
- How severe is CVE-2019-17506?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-17506 known to be exploited?
- 27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.