Linux Distros Unpatched Vulnerability : CVE-2026-104711

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(363054);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/06");

  script_cve_id("CVE-2026-104711");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-104711");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - Improper neutralization of special elements used in an expression language statement ('Expression Language
    Injection') vulnerability in Apache Struts. If the application is configured to use the legacy RESTful
    action mapper, a crafted request can inject an OGNL expression that may lead to remote code execution.
    Struts 7 is affected only when the OGNL allowlist is disabled; it is enabled by default. Applications
    using the default action mapper, the restful2 mapper, or the Struts REST plugin are not affected. This
    issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through
    6.11.0, from 7.0.0 through 7.3.0. Users are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes
    the issue. (CVE-2026-104711)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2026-104711");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-104711");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/10/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:google-guice");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:google-guice-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-assistedinject");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-bom");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-extensions");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-grapher");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-jmx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-jndi");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-servlet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-testlib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:guice-throwingproviders");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:google-guice");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:google-guice-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:guice-assistedinject");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:guice-bom");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:guice-extensions");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:guice-grapher");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:guice-jmx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:guice-jndi");
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  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/CentOS Linux-8", "Host/OS/Red Hat Enterprise Linux-10", "Host/OS/Red Hat Enterprise Linux-8", "Host/OS/Red Hat Enterprise Linux-9");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/CentOS/rpm-list")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Red Hat Enterprise Linux-10": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "10",
        "pkgs": [
          {"reference": "google-guice"},
          {"reference": "google-guice-javadoc"},
          {"reference": "guice-assistedinject"},
          {"reference": "guice-bom"},
          {"reference": "guice-extensions"},
          {"reference": "guice-grapher"},
          {"reference": "guice-jmx"},
          {"reference": "guice-jndi"},
          {"reference": "guice-parent"},
          {"reference": "guice-servlet"},
          {"reference": "guice-throwingproviders"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "google-guice"},
          {"reference": "google-guice-javadoc"},
          {"reference": "guice-assistedinject"},
          {"reference": "guice-bom"},
          {"reference": "guice-extensions"},
          {"reference": "guice-grapher"},
          {"reference": "guice-jmx"},
          {"reference": "guice-jndi"},
          {"reference": "guice-parent"},
          {"reference": "guice-servlet"},
          {"reference": "guice-throwingproviders"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "google-guice"},
          {"reference": "google-guice-javadoc"},
          {"reference": "guice-assistedinject"},
          {"reference": "guice-bom"},
          {"reference": "guice-extensions"},
          {"reference": "guice-grapher"},
          {"reference": "guice-jmx"},
          {"reference": "guice-jndi"},
          {"reference": "guice-multibindings"},
          {"reference": "guice-parent"},
          {"reference": "guice-servlet"},
          {"reference": "guice-testlib"},
          {"reference": "guice-throwingproviders"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "google-guice"},
          {"reference": "google-guice-javadoc"},
          {"reference": "guice-assistedinject"},
          {"reference": "guice-bom"},
          {"reference": "guice-extensions"},
          {"reference": "guice-grapher"},
          {"reference": "guice-jmx"},
          {"reference": "guice-jndi"},
          {"reference": "guice-multibindings"},
          {"reference": "guice-parent"},
          {"reference": "guice-servlet"},
          {"reference": "guice-testlib"},
          {"reference": "guice-throwingproviders"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');

var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (!empty_or_null(third_party_support)) {
    var third_party_vendors = distro_constraints_values['third_party'];
    if (!empty_or_null(third_party_vendors)) {
        var vendor;
        foreach vendor (third_party_vendors) {
            if (vendor == third_party_support) exit(0, 'A third party management patch is available for this vulnerability from ' + vendor + '.\n');
        }
    }
}

var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}