Deserialization in Code42 Crashplan

CVE-2017-9830

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.065 (93.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-9830?
CVE-2017-9830 is a critical-severity vulnerability in Code42 Crashplan, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2017-06-27.
How severe is CVE-2017-9830?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-9830 known to be exploited?
9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.