Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.
Open advisories
14 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.
The http parser in Phusion Passenger 6.0.21 through 6.0.25 before 6.0.26 allows a denial of service during parsing of a request with an invalid HTTP method.
Recommended action: Upgrade to 6.0.26 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
During the spawning of a malicious Passenger-managed application, SpawningKit in Phusion Passenger 5.3.x before 5.3.2 allows such applications to replace key files or directories in the spawning communication directory with symlinks. This then could result in arbitrary reads and writes, which in turn can result in information disclosure and privilege escalation.
Recommended action: Upgrade to 5.3.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
A race condition in the nginx module in Phusion Passenger 3.x through 5.x before 5.3.2 allows local escalation of privileges when a non-standard passengerinstanceregistrydir with insufficiently strict permissions is configured. Replacing a file with a symlink after the file was created, but before it was chowned, leads to the target of the link being chowned via the path. Targeting sensitive files such as root's crontab file allows privilege escalation.
Recommended action: Upgrade to 5.3.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
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.
Recommended action: Upgrade to 5.3.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
An Insecure Permissions vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 causes information disclosure in the following situation: given a Passenger-spawned application process that reports that it listens on a certain Unix domain socket, if any of the parent directories of said socket are writable by a normal user that is not the application's user, then that non-application user can swap that directory with something else, resulting in traffic being redirected to a non-application user's process through an alternative Unix domain socket.
Recommended action: Upgrade to 5.3.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
An Incorrect Access Control vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 allows a Passenger-managed malicious application, upon spawning a child process, to report an arbitrary different PID back to Passenger's process manager. If the malicious application then generates an error, it would cause Passenger's process manager to kill said reported arbitrary PID.
Recommended action: Upgrade to 5.3.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
In agent/Core/SpawningKit/Spawner.h in Phusion Passenger 5.1.10 (fixed in Passenger Open Source 5.1.11 and Passenger Enterprise 5.1.10), if Passenger is running as root, it is possible to list the contents of arbitrary files on a system by symlinking a file named REVISION from the application root folder to a file of choice and querying passenger-status --show=xml.
Recommended action: Upgrade to 5.1.11 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
RubyGems passenger 4.0.0 betas 1 and 2 allows remote attackers to delete arbitrary files during the startup process. Affects both open source and Enterprise versions (4.0.0.beta1, 4.0.0.beta2).
Recommended action: Upgrade to 4.0.0.rc4 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Phusion Passenger 4.0.37 allows local users to write to certain files and directories via a symlink attack on (1) controlprocess.pid or a (2) generation- file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-1831.
Recommended action: Upgrade to 4.0.38 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Phusion Passenger before 4.0.38 allows local users to write to certain files and directories via a symlink attack on 1. controlprocess.pid or 2. a generation- file.
Recommended action: Upgrade to 4.0.38 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
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 XUser header.
Recommended action: Upgrade to 5.0.22 or 4.0.60 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
In Phusion Passenger before 5.1.0, a known /tmp filename was used during passenger-install-nginx-module execution, which could allow local attackers to gain the privileges of the passenger user
Recommended action: Upgrade to 5.1.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Phusion Passenger gem before 3.0.21 and 4.0.x before 4.0.5 for Ruby allows local users to cause a denial of service (prevent application start) or gain privileges by pre-creating a temporary "config" file in a directory with a predictable name in /tmp/ before it is used by the gem.
Recommended action: Upgrade to 4.0.5 or 3.0.21 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain privileges or possibly change the ownership of arbitrary directories via a symlink attack on a directory with a predictable name in /tmp/.
Recommended action: Upgrade to 4.0.6 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.