What is CVE-2018-18850?

CVE-2018-18850 is a high-severity vulnerability in Octopus Server. CVSS score: 8.8/10. Published 2018-10-31.

How severe is CVE-2018-18850?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2018-18850 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Octopus Server

CVE-2018-18850

In Octopus Deploy 2018.8.0 through 2018.9.x before 2018.9.1, an authenticated user with permission to modify deployment processes could upload a maliciously crafted YAML configuration, potentially allowing for remote execution of arbitrary code, running in the same context as the Octopus Server (for self-hosted installations by default, SYSTEM).

EPSS: 0.125 (95.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Octopus Octopus_server
N/a — versions n/a

Public proof-of-concept exploits

rapid7/metasploit-framework

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-18850?: CVE-2018-18850 is a high-severity vulnerability in Octopus Server. CVSS score: 8.8/10. Published 2018-10-31.
How severe is CVE-2018-18850?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2018-18850 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.