ASA-201711-30 log generated external raw
[ASA-201711-30] powerdns: access restriction bypass |
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Arch Linux Security Advisory ASA-201711-30
==========================================
Severity: Low
Date : 2017-11-27
CVE-ID : CVE-2017-15091
Package : powerdns
Type : access restriction bypass
Remote : Yes
Link : https://security.archlinux.org/AVG-519
Summary
=======
The package powerdns before version 4.0.5-1 is vulnerable to access
restriction bypass.
Resolution
==========
Upgrade to 4.0.5-1.
# pacman -Syu "powerdns>=4.0.5-1"
The problem has been fixed upstream in version 4.0.5.
Workaround
==========
None.
Description
===========
An issue has been found in the API component of PowerDNS Authoritative
< 4.0.5, where some operations that have an impact on the state of the
server are still allowed even though the API has been configured as
read-only via the 'api-readonly' keyword. This missing check allows an
attacker with valid API credentials could flush the cache, trigger a
zone transfer or send a NOTIFY.
Impact
======
A remote, authenticated attacker can flush the cache, trigger a zone
transfer or send a NOTIFY through the API even though it was configured
as read-only.
References
==========
http://seclists.org/oss-sec/2017/q4/329
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2017-04.html
https://github.com/PowerDNS/pdns/commit/245a2c8211db2f6c5771f93671e4eb80d4e0a0c7
https://security.archlinux.org/CVE-2017-15091
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