Improper input validation in Phusionpassenger Phusion Passenger

CVE-2015-7519

agent/Core/Controller/SendRequest.cpp in Phusion Passenger before 4.0.60 and 5.0.x before 5.0.22, when used in Apache integration mode or in standalone mode without a filtering proxy, allows remote attackers to spoof headers passed to applications by using an _ (underscore) character instead of a - (dash) character in an HTTP header, as demonstrated by an X_User header.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.024 (82.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2015-7519?
CVE-2015-7519 is a low-severity vulnerability in Phusionpassenger Phusion Passenger, classified under Improper Input Validation. CVSS score: 3.7/10. Published 2016-01-08.
How severe is CVE-2015-7519?
Low severity. CVSS v3 base score is 3.7 out of 10.
Is CVE-2015-7519 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.