CVE-2018-20131

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-01-03 · updated 2026-06-17
Weakness: CWE-732

Description

The Code42 app before 6.8.4, as used in Code42 for Enterprise, on Linux installs with overly permissive permissions on the /usr/local/crashplan/log directory. This allows a user to manipulate symbolic links to escalate privileges, or show the contents of sensitive files that a regular user would not have access to.

Affected products

Code42: before 6.8.4 — fixed in 6.8.4

How to fix

Upgrade to a fixed version: Code42 6.8.4. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/106452
https://code42.com/r/support/CVE-2018-20131
http://www.securityfocus.com/bid/106452
https://code42.com/r/support/CVE-2018-20131

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