SB2017121528 - File injection in pdns-recursor (Alpine package)
Published: December 15, 2017
Security Bulletin ID
SB2017121528
Severity
Low
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 security vulnerability.
1) File injection (CVE-ID: CVE-2017-15093)
The vulnerability allows a remote authenticated attacker to inject API file on the target system.
The vulnerability exists in the API of PowerDNS Recursor during a source code audit by Nixu due to insufficient validation of the new netmask and IP addresses of forwarded zones. A remote attacker can add and remove netmasks when api-config-dir is set to a non-empty value and inject new configuration directives into the Recursor’s configuration.
Remediation
Install update from vendor's website.