CVE-2013-4136: n/a vulnerability

CVE-2013-4136: ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain pr...

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/.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 03:38 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects older Phusion Passenger Ruby gem versions before 4.0.6. A local user on the same server could abuse predictable temporary directory handling in /tmp to gain privileges or possibly change ownership of directories. It is most relevant to legacy shared or multi-user Linux hosting environments. Exposure is likely limited to systems running Phusion Passenger for Ruby before 4.0.6, especially servers where untrusted local users have shell or process access. Internet-only remote exposure is not supported by the provided sources. Prioritize remediation on legacy shared hosting, application servers, and systems with multiple local users. Single-purpose servers without untrusted local access are lower urgency, but unsupported Passenger versions should still be retired. Mitigation focus: Upgrade Phusion Passenger to version 4.0.6 or later where applicable.; For vendor packages, review and apply the relevant Red Hat advisory updates.; Restrict untrusted local user access to affected hosts until remediated..

Prepared: Jun 14, 2026, 15:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 30, 2013, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/phusion/passenger/blob/release-4.0.6/NEWSCVE reference · x_refsource_CONFIRM
https://code.google.com/p/phusion-passenger/issues/detail?id=910CVE reference · x_refsource_CONFIRM
https://github.com/phusion/passenger/commit/5483b3292cc2af1c83033eaaadec20dba4dcfd9bCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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