THREATPORT/VULNERABILITY/CVE-2016-7068
MEDIUM SEVERITY

CVE-2016-7068

Authoritative vulnerability

CVSS
5.3
EPSS
7.3%
EPSS pct
94th
Exploited
No known
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.
Affected vendor
Powerdns
Affected product
Authoritative
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
  • CWE-400 — Uncontrolled Resource Consumption
Published
2018-09-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to availability.

Its EPSS score of 7.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2016-7068

  • Confirm whether Powerdns Authoritative is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-7068.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-7068

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-7068 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2016-7068?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2016-7068.

Start free scan

No credit card. Agentless.

Related vulnerabilities

MEDIUM
CVE-2014-6368
Internet Explorer vulnerability
MEDIUM
CVE-2014-8602
Unbound vulnerability
MEDIUM
CVE-2014-8680
Bind vulnerability