Improper input validation in Skyworthdigital Dt721-Cb
CVE-2018-19524
An issue was discovered on Shenzhen Skyworth DT741 Converged Intelligent Terminal (G/EPON+IPTV) SDOTBGN1, DT721-cb SDOTBGN1, and DT741-cb SDOTBGN1 devices. A long password to the Web_passwd function allows remote attackers to cause a denial of service (segmentation fault) or achieve unauthenticated remote code execution because of control of registers S0 through S4 and T4 through T7.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.505 (98.9th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 98.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.505 · newest: 0.505 · change: 0.000
Affected products
- Skyworthdigital Dt721-Cb
- Skyworthdigital Dt721-Cb Firmware — versions sdotbgn1
- Skyworthdigital Dt740
- Skyworthdigital Dt740 Firmware — versions sdotbgn1
- Skyworthdigital Dt741-Cb
- Skyworthdigital Dt741-Cb Firmware — versions sdotbgn1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- seclists.org/bugtraq/2019/Feb/21 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- www.exploit-db.com/exploits/46358/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- s3curityb3ast.github.io/KSA-Dev-001.md
- packetstormsecurity.com/files/151608/Skyworth-GPON-HomeGateways-Optical-Network… (Exploit, VDB Entry, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Feb/30 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- www.breakthesec.com/2019/02/cve-2018-19524-stack-overflow-in.html
Frequently asked questions
- What is CVE-2018-19524?
- CVE-2018-19524 is a critical-severity vulnerability in Skyworthdigital Dt721-Cb, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-03-21.
- How severe is CVE-2018-19524?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-19524 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.