CVE-2017-20198 json
DC/OS Marathon UI < 1.9.0 Unauthenticated RCE via Docker Mount Abuse
published 2025-07-23 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2017-18916
- cvss
- 9.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 1
- Metasploit
Summary
The Marathon UI in DC/OS < 1.9.0 allows unauthenticated users to deploy arbitrary Docker containers. Due to improper restriction of volume mount configurations, attackers can deploy a container that mounts the host's root filesystem (/) with read/write privileges. When using a malicious Docker image, the attacker can write to /etc/cron.d/ on the host, achieving arbitrary code execution with root privileges. This impacts any system where the Docker daemon honors Marathon container configurations without policy enforcement.
Patch / fix
- D2iQ, Inc. DC/OS Marathon 1.9.0
Timeline
- First public exploit (Metasploit exploit/linux/http/dcos_marathon)
- Published
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 15 mo ago
Exploit prediction
1.31% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/http/dcos_marathon DC/OS Marathon UI Docker Exploit metasploit exploit, excellent rank, 2017-03-03
- exploit-db.com https://www.exploit-db.com/exploits/42134 referenced PoC, tagged "exploit" by a source, unverified
- raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/dcos_marathon.rb referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- D2iQ, Inc. DC/OS Marathon
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
exploit-db.com
/exploits/42134
exploit
-
raw.githubusercontent.com
/rapid7/metasploit-framework/master/modules/exploits/linux/http/dcos_marathon.rb
exploit
-
web.archive.org
/web/20230609134421/https://warroom.rsmus.com/dcos-marathon-compromise/
technical-description
-
dcos.io
/
product
-
vulncheck.com
/advisories/dcos-marathon-docker-mount-abuse-rce
third-party-advisory
Sources
- CVE List CVE-2017-20198
- NVD CVE-2017-20198
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.