Linux Distros Unpatched Vulnerability : CVE-2017-7501

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

include('compat.inc');

if (description)
{
  script_id(221756);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/16");

  script_cve_id("CVE-2017-7501");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2017-7501");

  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.

  - It was found that versions of rpm before 4.13.0.2 use temporary files with predictable names when
    installing an RPM. An attacker with ability to write in a directory where files will be installed could
    create symbolic links to an arbitrary location and modify content, and possibly permissions to arbitrary
    files, which could be used for denial of service or possibly privilege escalation. (CVE-2017-7501)

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-2017-7501");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2017-7501");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2017-7501");
  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:L/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:L/AC:L/PR:L/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-2017-7501");

  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:"2017/05/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-apidocs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-build");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-build-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-cron");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-plugin-systemd-inhibit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rpm-sign");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-apidocs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-build");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-build-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-cron");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-plugin-systemd-inhibit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-sign");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("set_linux_os_id.nasl", "ssh_get_info2.nasl");
  script_require_keys("Host/OS/identifier", "Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched");
  script_require_ports("Host/OS/CentOS Linux-7", "Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14", "Host/OS/Red Hat Enterprise Linux-5", "Host/OS/Red Hat Enterprise Linux-6", "Host/OS/Red Hat Enterprise Linux-7", "Host/OS/Ubuntu Linux-14.04", "Host/OS/Ubuntu Linux-16.04");

  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/Debian/dpkg-l")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "librpm-dev"},
          {"reference": "librpm9"},
          {"reference": "librpmbuild9"},
          {"reference": "librpmio9"},
          {"reference": "librpmsign9"},
          {"reference": "python3-rpm"},
          {"reference": "rpm"},
          {"reference": "rpm-common"},
          {"reference": "rpm-i18n"},
          {"reference": "rpm2cpio"}
        ]
      }
    ]
  },
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "debugedit"},
          {"reference": "librpm-dev"},
          {"reference": "librpm9"},
          {"reference": "librpmbuild9"},
          {"reference": "librpmio9"},
          {"reference": "librpmsign9"},
          {"reference": "python3-rpm"},
          {"reference": "rpm"},
          {"reference": "rpm-common"},
          {"reference": "rpm-i18n"},
          {"reference": "rpm2cpio"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "librpm-dev"},
          {"reference": "librpm10"},
          {"reference": "librpmbuild10"},
          {"reference": "librpmio10"},
          {"reference": "librpmsign10"},
          {"reference": "python3-rpm"},
          {"reference": "rpm"},
          {"reference": "rpm-common"},
          {"reference": "rpm2cpio"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "librpm-dev"},
          {"reference": "librpm10"},
          {"reference": "librpmbuild10"},
          {"reference": "librpmio10"},
          {"reference": "librpmsign10"},
          {"reference": "python3-rpm"},
          {"reference": "rpm"},
          {"reference": "rpm-common"},
          {"reference": "rpm-i18n"},
          {"reference": "rpm2cpio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-14.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14.04",
        "pkgs": [
          {"reference": "debugedit"},
          {"reference": "librpm-dbg"},
          {"reference": "librpm-dev"},
          {"reference": "librpm3"},
          {"reference": "librpmbuild3"},
          {"reference": "librpmio3"},
          {"reference": "librpmsign1"},
          {"reference": "python-rpm"},
          {"reference": "rpm"},
          {"reference": "rpm-common"},
          {"reference": "rpm-i18n"},
          {"reference": "rpm2cpio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "rpm"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-5": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "5",
        "pkgs": [
          {"reference": "rpm"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-6": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "6",
        "pkgs": [
          {"reference": "rpm"},
          {"reference": "rpm-apidocs"},
          {"reference": "rpm-build"},
          {"reference": "rpm-cron"},
          {"reference": "rpm-devel"},
          {"reference": "rpm-libs"},
          {"reference": "rpm-python"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "rpm"},
          {"reference": "rpm-apidocs"},
          {"reference": "rpm-build"},
          {"reference": "rpm-build-libs"},
          {"reference": "rpm-cron"},
          {"reference": "rpm-devel"},
          {"reference": "rpm-libs"},
          {"reference": "rpm-plugin-systemd-inhibit"},
          {"reference": "rpm-python"},
          {"reference": "rpm-sign"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "rpm"},
          {"reference": "rpm-apidocs"},
          {"reference": "rpm-build"},
          {"reference": "rpm-build-libs"},
          {"reference": "rpm-cron"},
          {"reference": "rpm-devel"},
          {"reference": "rpm-libs"},
          {"reference": "rpm-plugin-systemd-inhibit"},
          {"reference": "rpm-python"},
          {"reference": "rpm-sign"}
        ]
      }
    ]
  }
};

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 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');
}