SB2018012605 - Security restrictions bypass in Asus AsusWRT
Published: January 26, 2018
Security Bulletin ID
SB2018012605
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Security restrictions bypass (CVE-ID: CVE-2018-5999)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Clear
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to a flaw in the handle_request function in router/httpd/httpd.c. A remote attacker can send a specially crafted HTTP POST request and bypass security restrictions.
2) Security restrictions bypass (CVE-ID: CVE-2018-6000)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Clear
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to a flaw in the do_vpnupload_post function in router/httpd/web.c in vpnupload.cgi. A remote attacker can send a specially crafted HTTP POST request and bypass security restrictions, set the admin password and launch an SSH daemon.
Remediation
Install update from vendor's website.