CVE-2017-9830

Crashplan vulnerability

CVSS

9.8

EPSS

6.5%

EPSS pct

93th

Exploited

No known

Remote Code Execution is possible in Code42 CrashPlan 5.4.x via the org.apache.commons.ssl.rmi.DateRMI Java class, because (upon instantiation) it creates an RMI server that listens on a TCP port and deserializes objects sent by TCP clients.

Affected vendor

Code42

Affected product

Crashplan

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-502 — Deserialization of Untrusted Data

Published

2017-06-27

Risk analysis

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

Its EPSS score of 6.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2017-9830

Confirm whether Code42 Crashplan is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-9830.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-9830

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-9830 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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