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CVE-2017-16355

MEDIUM
4.7
CVSS Score
Published: December 14, 2017 at 10:00 PM UTC
Updated: June 17, 2026 at 01:09 AM UTC
2 products affected across 2 vendorsDebian LinuxPassenger

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.4%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
9.0
Passenger· Phusionrubygems
95%
5.0.10 ≤ v < 5.1.105.0.10 ≤ v < 5.1.11
Affected range stops below 5.1.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.1.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://blog.phusion.nl/2017/10/13/passenger-security-advisory-5-1-11/
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/phusion/passenger/commit/4043718264095cde6623c2cbe8c644541036d7bf
Mailing Listx_refsource_BUGTRAQIssue TrackingThird Party Advisory
Source: [email protected]
https://seclists.org/bugtraq/2019/Mar/34
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2019/dsa-4415

CVSS

4.7MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200

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