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CVE-2017-16355

18
FAUCET Score

CVE-2017-16355 describes an information disclosure vulnerability in Phusion Passenger versions 5.1.10 and earlier, specifically affecting Debian Linux distributions. If Passenger operates with root privileges, an attacker can read arbitrary file contents by creating a symbolic link named REVISION within the application root and then querying passenger-status --show=xml. This vulnerability has a CVSS score of 4.7 (Medium), indicating a local attack vector with high complexity and a potential for high confidentiality impact, but no integrity or availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0.10, < 5.1.10CPE matchmatch criteria
cpe:2.3:a:phusion:passenger:*:*:*:*:enterprise:*:*:*
>= 5.0.10, < 5.1.11CPE matchmatch criteria
cpe:2.3:a:phusion:passenger:*:*:*:*:open_source:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 77th percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: passengerFixed in: 5.1.11
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 1.3Fixed in: ruby193-rubygem-passenger
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 1.3Fixed in: rubygem-passenger
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-passenger40-passenger

Vendor Advisories (2)

rubygemsGHSA-cv3f-px9r-54hmmedium

Phusion Passenger information disclosure

May 13, 2022
redhatCVE-2017-16355Moderate

passenger: arbitrary file read via REVISION symlink

Oct 16, 2017

References

blog.phusion.nl / 2017/10/13/passenger-security-advisory-5-1-11
Third Party Advisory
github.com / phusion/passenger/commit/4043718264095cde6623c2cbe8c644541036d7bf
PatchThird Party Advisory
seclists.org / bugtraq/2019/Mar/34
Issue TrackingMailing ListThird Party Advisory
debian.org / security/2019/dsa-4415
Third Party Advisory