High severity · published Oct 31, 2018
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…
8.8
CVSS
12.5%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)12.5% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OS
Octopus Server · Octopus
2018.8.0 through 2018.8.12; 2018.9.0 before 2018.9.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-18850
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-18850
Third Party Advisory
https://github.com/OctopusDeploy/Issues/issues/5042
More from Octopus Server
9.8
CVE-2024-9194
SQL Injection in the Octopus Server REST API
9.8
CVE-2022-2572
In affected versions of Octopus Server where access is managed by an external authentication provider, it was possible that the API key/keys of a disabled/deleted user were still…
9.8
CVE-2022-2778
In affected versions of Octopus Deploy it is possible to bypass rate limiting on login using null bytes
9.8
CVE-2018-11320
In Octopus Deploy 2018.4.4 through 2018.5.1, Octopus variables that are sourced from the target do not have sensitive values obfuscated in the deployment logs
9.1
CVE-2026-0704
In affected version of Octopus Deploy it was possible to remove files and/or contents of files on the host using an API endpoint