CVE-2017-20198Disclosure

LOWCVSS 9.3 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

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.

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1.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-732

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Threat summary

Public PoC is present in monitored signal
1 mentions across 1 observed day

What's happening

PoC mentioned or linked in 1 signal
Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://zerodaysignal.com/vulnerability/CVE-2017-20198

Full discourse1 post

0day Signal@0dayPublishing183d
Disclosure
🚨 CVE-2017-20198: DC/OS Marathon UI < 1.9.0 Unauth... Unauthenticated root via Docker mount abuse - deploy malicious container, mount host `/`, write to `/etc/cron.d/` for p... https://zerodaysignal.com/vulnerability/CVE-2017-20198 #netsec #vulnerability #CVE #sysadmin #zeroday
Post summary
The tweet announces CVE‑2017‑20198, detailing how an attacker can achieve root by mounting the host filesystem inside a Docker container and writing to /etc/cron.d/, and links to a vulnerability report for more information.
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