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.
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-20,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| phusionpassenger | phusion_passenger | 5.0.3 |
| phusionpassenger | phusion_passenger | 5.0.11 |
| phusionpassenger | phusion_passenger | 5.0.12 |
| phusionpassenger | phusion_passenger | 5.0.5 |
| phusionpassenger | phusion_passenger | 5.0.19 |
| phusionpassenger | phusion_passenger | 5.0.20 |
| phusionpassenger | phusion_passenger | 5.0.10 |
| phusionpassenger | phusion_passenger | 5.0.14 |
| phusionpassenger | phusion_passenger | 5.0.2 |
| phusionpassenger | phusion_passenger | 5.0.8 |
| phusionpassenger | phusion_passenger | 5.0.1 |
| phusionpassenger | phusion_passenger | 5.0.15 |
| phusionpassenger | phusion_passenger | 5.0.7 |
| phusionpassenger | phusion_passenger | 5.0.16 |
| phusionpassenger | phusion_passenger | 5.0.21 |
| phusionpassenger | phusion_passenger | 5.0.0 |
| phusionpassenger | phusion_passenger | 5.0.9 |
| phusionpassenger | phusion_passenger | 5.0.18 |
| phusionpassenger | phusion_passenger | 5.0.17 |
| phusionpassenger | phusion_passenger | 5.0.13 |
| phusionpassenger | phusion_passenger | 5.0.6 |
| phusionpassenger | phusion_passenger | * |
| phusionpassenger | phusion_passenger | 5.0.4 |