CVE-2017-0356

Ikiwiki vulnerability

CVSS

9.8

EPSS

3.5%

EPSS pct

88th

Exploited

No known

A flaw, similar to to CVE-2016-9646, exists in ikiwiki before 3.20170111, in the passwordauth plugin's use of CGI::FormBuilder, allowing an attacker to bypass authentication via repeated parameters.

Affected vendor

Ikiwiki

Affected product

Ikiwiki

CVSS vector

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

Weakness type (CWE)

CWE-287 — Improper Authentication

Published

2018-04-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2017-0356

Confirm whether Ikiwiki Ikiwiki is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-0356.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-0356

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-0356 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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