5.3

CVE-2017-15093: powerdns powerdns_recursor Improper Input Validation

Modified
AliasesUBUNTU-CVE-2017-15093DEBIAN-CVE-2017-15093ALPINE-CVE-2017-15093
Published 23-01-2018Last modified 17-09-2024

Vulnerability summary

CVE-2017-15093 is a medium (CVSS 5.3) Improper Input Validation vulnerability in powerdns powerdns_recursor. EPSS estimates a 0.83% chance of exploitation in the next 30 days, higher than 57.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v3.0 (NVD)
EPSS score
0.83%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2024:11157-1

Timeline

  1. 23-01-2018
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

When api-config-dir is set to a non-empty value, which is not the case by default, the API in PowerDNS Recursor 4.x up to and including 4.0.6 and 3.x up to and including 3.7.4 allows an authorized user to update the Recursor's ACL by adding and removing netmasks, and to configure forward zones. It was discovered that the new netmask and IP addresses of forwarded zones were not sufficiently validated, allowing an authenticated user to inject new configuration directives into the Recursor's configuration.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.83%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.83% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Powerdns2 products
  • powerdns_recursor4.x up to and including 4.0.6 | 3.x up to and including 3.7.4
  • recursor≥ 3.0, ≤ 3.7.4 | ≥ 4.0.0, ≤ 4.0.6
Alpine1 product
  • pdns-recursor< 4.0.7-r0
Debian1 product
  • pdns-recursor< 4.0.7-1
Ubuntu1 product
  • pdns-recursorAll versions (No fix recorded)

4 vendors · 5 products

References

7 links