THREATPORT/VULNERABILITY/CVE-2018-6356
MEDIUM SEVERITY

CVE-2018-6356

Jenkins vulnerability

CVSS
6.5
EPSS
3.9%
EPSS pct
89th
Exploited
No known
Jenkins before 2.107 and Jenkins LTS before 2.89.4 did not properly prevent specifying relative paths that escape a base directory for URLs accessing plugin resource files. This allowed users with Overall/Read permission to download files from the Jenkins master they should not have access to. On Windows, any file accessible to the Jenkins master process could be downloaded. On other operating systems, any file within the Jenkins home directory accessible to the Jenkins master process could be downloaded.
Affected vendor
Jenkins
Affected product
Jenkins
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2018-02-20

Risk analysis

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

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2018-6356

  • Confirm whether Jenkins Jenkins is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-6356.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-6356

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-6356 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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