SB2018051901 - CSRF in multiple DrayTek routers
Published: May 19, 2018
Security Bulletin ID
SB2018051901
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Cross-site request forgery (CVE-ID: CVE-2018-20872)
CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:A/U:Green
The vulnerability allows a remote attacker to perform CSRF attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin in DrayTek Vigor web management interface. A remote attacker can change setting of Vigor router.
Note: this vulnerability has been exploited in the wild in May 2018. The attackers changed DNS servers of victims to address: 38.134.121.95
Remediation
Install update from vendor's website.