Rack provides an interface for developing web applications in Ruby. Prior to versions 2.2.13, 3.0.14, and 3.1.12, `Rack::Static` can serve files under the specified `root:` even if `urls:` are provided, which may expose other files under the specified `root:` unexpectedly. The vulnerability occurs because `Rack::Static` does not properly sanitize user-supplied paths before serving files. Specifically, encoded path traversal sequences are not correctly validated, allowing attackers to access files outside the designated static file directory. By exploiting this vulnerability, an attacker can gain access to all files under the specified `root:` directory, provided they are able to determine then path of the file. Versions 2.2.13, 3.0.14, and 3.1.12 contain a patch for the issue. Other mitigations include removing usage of `Rack::Static`, or ensuring that `root:` points at a directory path which only contains files which should be accessed publicly. It is likely that a CDN or similar static file server would also mitigate the issue.

vendor_unpatched cve-2025-27610: Unpatched CVEs for Debian Linux (cve-2025-27610)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:3491 advisory.

    Red Hat Satellite is a system management solution that allows organizations     to configure and maintain their systems without the necessity to provide     public Internet access to their servers or other client systems. It     performs provisioning and configuration management of predefined standard     operating environments.

    Security Fix(es):

    * rubygem-graphql: Remote code execution when loading a crafted GraphQL schema (CVE-2025-27407)

    * rubygem-rack: Local File Inclusion in Rack::Static (CVE-2025-27610)

    * python-jinja2: Jinja has a sandbox breakout through malicious filenames (CVE-2024-56201)

    Users of Red Hat Satellite are advised to upgrade to these updated     packages, which fix these bugs.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:3492 advisory.

    Red Hat Satellite is a system management solution that allows organizations     to configure and maintain their systems without the necessity to provide     public Internet access to their servers or other client systems. It     performs provisioning and configuration management of predefined standard     operating environments.

    Security Fix(es):

    * rubygem-graphql: Remote code execution when loading a crafted GraphQL schema (CVE-2025-27407)

    * rubygem-rack: Local File Inclusion in Rack::Static (CVE-2025-27610)

    Users of Red Hat Satellite are advised to upgrade to these updated     packages, which fix these bugs.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:3490 advisory.

    Red Hat Satellite is a system management solution that allows organizations     to configure and maintain their systems without the necessity to provide     public Internet access to their servers or other client systems. It     performs provisioning and configuration management of predefined standard     operating environments.

    Security Fix(es):

    * rubygem-rack: Local File Inclusion in Rack::Static (CVE-2025-27610)

    * rubygem-graphql: Remote code execution when loading a crafted GraphQL schema (CVE-2025-27407)

    Users of Red Hat Satellite are advised to upgrade to these updated     packages, which fix these bugs.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5886 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5886-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     March 25, 2025                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : ruby-rack     CVE ID         : CVE-2025-25184 CVE-2025-27111 CVE-2025-27610

    Multiple security issues were found in Rack, an interface for developing     web applications in Ruby, which could result in log injection or     information disclosure.

    For the stable distribution (bookworm), these problems have been fixed in     version 2.2.13-1~deb12u1.

    We recommend that you upgrade your ruby-rack packages.

    For the detailed security status of ruby-rack please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/ruby-rack

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4090 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4090-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Adrian Bunk     March 24, 2025                                https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : ruby-rack     Version        : 2.1.4-3+deb11u3     CVE ID         : CVE-2025-25184 CVE-2025-27111 CVE-2025-27610     Debian Bug     : 1098257 1099546 1100444

    Multiple vulnerabilities have been fixed in ruby-rack,     an interface for developing web applications in Ruby.

    CVE-2025-25184

        Log Injection in Rack::CommonLogger

    CVE-2025-27111

        Log Injection in Rack::Sendfile

    CVE-2025-27610

        Local file inclusion in Rack::Static

    For Debian 11 bullseye, these problems have been fixed in version     2.1.4-3+deb11u3.

    We recommend that you upgrade your ruby-rack packages.

    For the detailed security status of ruby-rack please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/ruby-rack

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7366-1 advisory.

    Nht Thi  discovered that Rack incorrectly handled certain usernames. A remote attacker could     possibly use this issue to perform CRLF injection. (CVE-2025-25184)

    Phm Quang Minh discovered that Rack incorrectly handled certain headers. A remote attacker could     possibly use this issue to perform log injection. (CVE-2025-27111)

    Phm Quang Minh discovered that Rack did not properly handle relative file paths. A remote attacker     could potentially exploit this to include local files that should have been inaccessible. (CVE-2025-27610)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0874-1 advisory.

    - CVE-2025-25184: Fixed escape sequence injection vulnerability in rack leading to possible log injection     (bsc#1237141)
    - CVE-2025-27111: Fixed escape sequence injection vulnerability in rack leading to possible log injection     (bsc#1238607)
    - CVE-2025-27610: Fixed improper sanitization of user-supplied paths (bsc#1239298)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0858-1 advisory.

    - CVE-2025-27610: Fixed improper sanitization of user-supplied paths when serving files leading to local     file inclusion (bsc#1239298).
    - CVE-2025-25184: Fixed Rack::CommonLogger log entry manipulation (bsc#1237141).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
233927	RHEL 8 : Satellite 6.15.5.2 Async Update (Important) (RHSA-2025:3491)	Nessus	Red Hat Local Security Checks	medium
233923	RHEL 8 : Satellite 6.14.4.5 Async Update (Important) (RHSA-2025:3492)	Nessus	Red Hat Local Security Checks	critical
233911	RHEL 8 / 9 : Satellite 6.16.4 Async Update (Important) (RHSA-2025:3490)	Nessus	Red Hat Local Security Checks	critical
233339	Debian dsa-5886 : ruby-rack - security update	Nessus	Debian Local Security Checks	medium
233303	Debian dla-4090 : ruby-rack - security update	Nessus	Debian Local Security Checks	medium
233300	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : Rack vulnerabilities (USN-7366-1)	Nessus	Ubuntu Local Security Checks	medium
232756	SUSE SLES15 / openSUSE 15 Security Update : rubygem-rack (SUSE-SU-2025:0874-1)	Nessus	SuSE Local Security Checks	medium
232719	openSUSE 15 Security Update : rubygem-rack-1_6 (SUSE-SU-2025:0858-1)	Nessus	SuSE Local Security Checks	high

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