CVE-2017-7557: powerdns dnsdist Improper Authentication
CVSS: 8.8v3.0HighModified
AliasesUBUNTU-CVE-2017-7557DEBIAN-CVE-2017-7557
Published 22-08-2017Last modified 16-09-2024
Vulnerability summary
CVE-2017-7557 is a high (CVSS 8.8) Improper Authentication vulnerability in powerdns dnsdist. EPSS estimates a 0.84% chance of exploitation in the next 30 days, higher than 57% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.0 (NVD)EPSS score
0.84%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 22-08-2017PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially allowing CSRF attack.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.84%
Chance of exploitation in the next 30 days
Percentile
57%
Versus all other CVEs
30-day change
+0.01 pp
From 0.83% on 19-09-2026
19-09-202619-10-2026
EPSS score0.84%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
- CWE-352Cross-Site Request Forgery (CSRF)The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
Affected systems
Debian1 product
- dnsdist< 1.2.0-1
Powerdns1 product
- dnsdist1.1.0
Red hat, inc.1 product
- dnsdist1.1.0
Ubuntu1 product
- dnsdistAll versions (No fix recorded)
4 vendors · 4 products
References
6 links- dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-02.htmlX Refsource MISCPatchVendor AdvisoryREPORT
