CVE-2017-15091: powerdns authoritative Incorrect Authorization
Vulnerability summary
CVE-2017-15091 is a high (CVSS 7.1) Incorrect Authorization vulnerability in powerdns authoritative. EPSS estimates a 1.24% chance of exploitation in the next 30 days, higher than 68.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 23-01-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue has been found in the API component of PowerDNS Authoritative 4.x up to and including 4.0.4 and 3.x up to and including 3.4.11, 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 to flush the cache, trigger a zone transfer or send a NOTIFY.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS trend
Probability
1.24%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
0.00 pp
From 1.24% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
- CWE-358Improperly Implemented Security Check for StandardThe product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.
Affected systems
Powerdns2 products
- authoritative≥ 3.0, ≤ 3.4.11 | ≥ 4.0.0, ≤ 4.0.4
- powerdns authoritative4.x up to and including 4.0.4 | 3.x up to and including 3.4.11
Debian1 product
- pdns< 4.0.5-1
Ubuntu1 product
- pdnsAll versions (No fix recorded)
3 vendors · 4 products
References
6 links- doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2017-04.htmlX Refsource CONFIRMPatchVendor AdvisoryREPORT
