Stack-based buffer overflow in DIR-850L - CVE-2017-3193
Published: March 9, 2017
Vulnerability identifier: #VU5931
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-3193
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing requests within the web administration interface HNAP service. A remote attacker can send a specially crafted HTTP POST request to http://<router-ip>/HNAP1/ address with modified HNAP_AUTH and SOAPAction headers, trigger stack-based buffer overflow and execute arbitrary code on the target system with root privileges.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable device.
Affected software
DIR-850L
How to mitigate CVE-2017-3193
Cybersecurity Help is currently unaware of any official solution to address this vulnerability. As a temporary solution it is recommended to block access to management interface.
Vulnerability was reported in DIR-850L, firmware versions 1.14B07, 2.07.B05. Other versions may also be affected.
Vulnerability was reported in DIR-850L, firmware versions 1.14B07, 2.07.B05. Other versions may also be affected.