9.8

CVE-2017-0356: debian debian_linux Improper Authentication

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2017-0356DEBIAN-CVE-2017-0356
Published 13-04-2018Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2017-0356 is a critical (CVSS 9.8) Improper Authentication vulnerability in debian debian_linux. EPSS estimates a 3.28% chance of exploitation in the next 30 days, higher than 88.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
3.28%
0%100%
Low · +0.62 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 4 · Related 1
DLA-812-1DSA-3760-1MGASA-2019-0113OPENSUSE-SU-2024:10860-1

Timeline

  1. 13-04-2018
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.28%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

+0.62 pp

From 2.66% on 21-09-2026

21-09-202621-10-2026
EPSS score
3.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (marc.info)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Ikiwiki1 product
Ubuntu1 product
  • ikiwikiAll versions (No fix recorded)

3 vendors · 4 products

References

7 links