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Fencer Vulns
high 8.8

CVE-2017-7557 json

dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially allowing CSRF attack.

published 2017-08-22 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16564

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially allowing CSRF attack.

Patch / fix

  • dnsdist Debian 14, Debian 13, Debian 12 1.2.0-1

debian advisories DEBIAN-CVE-2017-7557

  • dnsdist SLE Module for Basesystem 15 SP5, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.5 +1 more 1.8.0-150400.9.3.1
  • luajit SLE Workstation Extension 15 SP5, SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP5 +5 more 2.1.0~beta3+git.1624618403.e9577376-150400.4.2.1
  • dnsdist SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP3-LTSS +2 more 1.8.0-150100.3.5.1

suse advisories SUSE-SU-2023:2760-1SUSE-SU-2023:2760-2SUSE-SU-2023:2777-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-7557 updated cvss 3.1

dnsdist: Alteration of ACLs via API authentication bypass

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Red Hat, Inc. dnsdist

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.