CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
71.2%
The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-a7b0d27d18 advisory.
A remote code execution risk was identified in the Lesson activity. By default this was only available to teachers and managers. (CVE-2023-5539)
A remote code execution risk was identified in the IMSCP activity. By default this was only available to teachers and managers. (CVE-2023-5540)
The CSV grade import method contained an XSS risk for users importing the spreadsheet, if it contained unsafe content. (CVE-2023-5541)
Students in Only see own membership groups could see other students in the group, which should be hidden. (CVE-2023-5542)
When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting. (CVE-2023-5543)
Wiki comments required additional sanitizing and access restrictions to prevent a stored XSS risk and potential IDOR risk. (CVE-2023-5544)
H5P metadata automatically populated the author with the user’s username, which could be sensitive information. (CVE-2023-5545)
ID numbers displayed in the quiz grading report required additional sanitizing to prevent a stored XSS risk. (CVE-2023-5546)
The course upload preview contained an XSS risk for users uploading unsafe data. (CVE-2023-5547)
Stronger revision number limitations were required on file serving endpoints to improve cache poisoning protection. (CVE-2023-5548)
Insufficient web service capability checks made it possible to move categories a user had permission to manage, to a parent category they did not have the capability to manage. (CVE-2023-5549)
In a shared hosting environment that has been misconfigured to allow access to other users’ content, a Moodle user who also has direct access to the web server outside of the Moodle webroot could utilise a local file include to achieve remote code execution. (CVE-2023-5550)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2023-a7b0d27d18
#
include('compat.inc');
if (description)
{
script_id(183344);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/29");
script_cve_id(
"CVE-2023-5539",
"CVE-2023-5540",
"CVE-2023-5541",
"CVE-2023-5542",
"CVE-2023-5543",
"CVE-2023-5544",
"CVE-2023-5545",
"CVE-2023-5546",
"CVE-2023-5547",
"CVE-2023-5548",
"CVE-2023-5549",
"CVE-2023-5550"
);
script_xref(name:"FEDORA", value:"2023-a7b0d27d18");
script_name(english:"Fedora 37 : moodle (2023-a7b0d27d18)");
script_set_attribute(attribute:"synopsis", value:
"The remote Fedora host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the
FEDORA-2023-a7b0d27d18 advisory.
- A remote code execution risk was identified in the Lesson activity. By default this was only available to
teachers and managers. (CVE-2023-5539)
- A remote code execution risk was identified in the IMSCP activity. By default this was only available to
teachers and managers. (CVE-2023-5540)
- The CSV grade import method contained an XSS risk for users importing the spreadsheet, if it contained
unsafe content. (CVE-2023-5541)
- Students in Only see own membership groups could see other students in the group, which should be
hidden. (CVE-2023-5542)
- When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a
new ID for the new activity. This could provide unintended access to the original meeting. (CVE-2023-5543)
- Wiki comments required additional sanitizing and access restrictions to prevent a stored XSS risk and
potential IDOR risk. (CVE-2023-5544)
- H5P metadata automatically populated the author with the user's username, which could be sensitive
information. (CVE-2023-5545)
- ID numbers displayed in the quiz grading report required additional sanitizing to prevent a stored XSS
risk. (CVE-2023-5546)
- The course upload preview contained an XSS risk for users uploading unsafe data. (CVE-2023-5547)
- Stronger revision number limitations were required on file serving endpoints to improve cache poisoning
protection. (CVE-2023-5548)
- Insufficient web service capability checks made it possible to move categories a user had permission to
manage, to a parent category they did not have the capability to manage. (CVE-2023-5549)
- In a shared hosting environment that has been misconfigured to allow access to other users' content, a
Moodle user who also has direct access to the web server outside of the Moodle webroot could utilise a
local file include to achieve remote code execution. (CVE-2023-5550)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2023-a7b0d27d18");
script_set_attribute(attribute:"solution", value:
"Update the affected moodle package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/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:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-5550");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/10/10");
script_set_attribute(attribute:"patch_publication_date", value:"2023/10/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/19");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:37");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:moodle");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Fedora Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Fedora' >!< os_release) audit(AUDIT_OS_NOT, 'Fedora');
var os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
os_ver = os_ver[1];
if (! preg(pattern:"^37([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 37', 'Fedora ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Fedora', cpu);
var pkgs = [
{'reference':'moodle-4.1.6-1.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (reference && _release) {
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'moodle');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5539
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5540
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5541
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5542
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5543
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5544
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5545
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5546
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5547
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5548
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5549
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5550
bodhi.fedoraproject.org/updates/FEDORA-2023-a7b0d27d18
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
71.2%