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[email protected]CVE-2017-15093

HistoryJan 23, 2018 - 3:29 p.m.

CVE-2017-15093

2018-01-2315:29:00

CWE-20

[email protected]

web.nvd.nist.gov

powerdns

recursor

api

acl

configuration injection

cve-2017-15093

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

23.8%

JSON

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.

Affected configurations

Vulners

NVD

Node

powerdnsrecursorRange≤4.0

powerdnsrecursorRange≤4.0.6

powerdnsrecursorRange≤3.0

powerdnsrecursorRange≤3.7.4

VendorProductVersionCPE
powerdnspowerdns_recursor*cpe:2.3:a:powerdns:powerdns_recursor:*:*:*:*:*:*:*:*
powerdnspowerdns_recursor*cpe:2.3:a:powerdns:powerdns_recursor:*:*:*:*:*:*:*:*
powerdnspowerdns_recursor*cpe:2.3:a:powerdns:powerdns_recursor:*:*:*:*:*:*:*:*
powerdnspowerdns_recursor*cpe:2.3:a:powerdns:powerdns_recursor:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
powerdns	powerdns_recursor	*	cpe:2.3:a:powerdns:powerdns_recursor::::::::
powerdns	powerdns_recursor	*	cpe:2.3:a:powerdns:powerdns_recursor::::::::
powerdns	powerdns_recursor	*	cpe:2.3:a:powerdns:powerdns_recursor::::::::
powerdns	powerdns_recursor	*	cpe:2.3:a:powerdns:powerdns_recursor::::::::

CNA Affected

[
  {
    "product": "PowerDNS Recursor",
    "vendor": "PowerDNS",
    "versions": [
      {
        "status": "affected",
        "version": "4.x up to and including 4.0.6"
      },
      {
        "status": "affected",
        "version": "3.x up to and including 3.7.4"
      }
    ]
  }
]