#VU33440 Improper Authorization - CVE-2019-10162
Published: July 31, 2019 / Updated: August 4, 2020
Vulnerability identifier: #VU33440
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-10162
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Software vendor:
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
A vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.10, 4.0.8 allowing an authorized user to cause the server to exit by inserting a crafted record in a MASTER type zone under their control. The issue is due to the fact that the Authoritative Server will exit when it runs into a parsing error while looking up the NS/A/AAAA records it is about to use for an outgoing notify.
Remediation
Install update from vendor's website.
External links
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00036.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00054.html
- https://blog.powerdns.com/2019/06/21/powerdns-authoritative-server-4-0-8-and-4-1-10-released/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10162
- https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-04.html