What is CVE-2018-12615?

CVE-2018-12615 is a medium-severity vulnerability in Phusion Passenger, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 5.3/10. Published 2018-06-21.

How severe is CVE-2018-12615?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2018-12615 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Phusion Passenger

CVE-2018-12615

An issue was discovered in switchGroup() in agent/ExecHelper/ExecHelperMain.cpp in Phusion Passenger before 5.3.2. The set of groups (gidset) is not set correctly, leaving it up to randomness (i.e., uninitialized memory) which supplementary groups are actually being set while lowering privileges.

EPSS: 0.012 (64.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Phusion Passenger
N/a — versions n/a

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

Public proof-of-concept exploits

Farrhouq/Inpt-report

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-12615?: CVE-2018-12615 is a medium-severity vulnerability in Phusion Passenger, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 5.3/10. Published 2018-06-21.
How severe is CVE-2018-12615?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2018-12615 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.