The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.
openldap: OpenLDAP SQL injection (CVE-2022-29155)
A flaw was found in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed by OpenLDAP’s slapd server, to trigger an assertion failure. The highest threat from this vulnerability is to system availability. (CVE-2020-25709)
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability. (CVE-2020-25710)
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssuerCheck).
(CVE-2020-36221)
A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the saslAuthzTo validation, resulting in denial of service. (CVE-2020-36222)
A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter control handling, resulting in denial of service (double free and out-of-bounds read). (CVE-2020-36223)
A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the saslAuthzTo processing, resulting in denial of service. (CVE-2020-36224)
A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the saslAuthzTo processing, resulting in denial of service. (CVE-2020-36225)
A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in the saslAuthzTo processing, resulting in denial of service. (CVE-2020-36226)
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service. (CVE-2020-36227)
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service. (CVE-2020-36228)
A flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN parsing in ad_keystring, resulting in denial of service. (CVE-2020-36229)
A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN parsing in decode.c ber_next_element, resulting in denial of service. (CVE-2020-36230)
In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via a short timestamp. This is related to schema_init.c and checkTime. (CVE-2021-27212)
A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function. (CVE-2023-2953)
Note that Nessus has not tested for these issues but has instead relied on the package manager’s report that the package is installed.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory openldap. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(196221);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/11");
script_cve_id(
"CVE-2020-25709",
"CVE-2020-25710",
"CVE-2020-36221",
"CVE-2020-36222",
"CVE-2020-36223",
"CVE-2020-36224",
"CVE-2020-36225",
"CVE-2020-36226",
"CVE-2020-36227",
"CVE-2020-36228",
"CVE-2020-36229",
"CVE-2020-36230",
"CVE-2021-27212",
"CVE-2022-29155",
"CVE-2023-2953"
);
script_name(english:"RHEL 7 : openldap (Unpatched Vulnerability)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 7 host is affected by multiple vulnerabilities that will not be patched.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple
vulnerabilities that have been acknowledged by the vendor but will not be patched.
- openldap: OpenLDAP SQL injection (CVE-2022-29155)
- A flaw was found in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed
by OpenLDAP's slapd server, to trigger an assertion failure. The highest threat from this vulnerability is
to system availability. (CVE-2020-25709)
- A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious
packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this
vulnerability is to system availability. (CVE-2020-25710)
- An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate
Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssuerCheck).
(CVE-2020-36221)
- A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the
saslAuthzTo validation, resulting in denial of service. (CVE-2020-36222)
- A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter
control handling, resulting in denial of service (double free and out-of-bounds read). (CVE-2020-36223)
- A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the
saslAuthzTo processing, resulting in denial of service. (CVE-2020-36224)
- A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the
saslAuthzTo processing, resulting in denial of service. (CVE-2020-36225)
- A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash
in the saslAuthzTo processing, resulting in denial of service. (CVE-2020-36226)
- A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop
Cancel operation, resulting in denial of service. (CVE-2020-36227)
- An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate
List Exact Assertion processing, resulting in denial of service. (CVE-2020-36228)
- A flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN
parsing in ad_keystring, resulting in denial of service. (CVE-2020-36229)
- A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN
parsing in decode.c ber_next_element, resulting in denial of service. (CVE-2020-36230)
- In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the
issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via
a short timestamp. This is related to schema_init.c and checkTime. (CVE-2021-27212)
- A vulnerability was found in openldap. This security flaw causes a null pointer dereference in
ber_memalloc_x() function. (CVE-2023-2953)
Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package
is installed.");
script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation
guidance.");
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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-29155");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vendor_unpatched", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/01/26");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/11");
script_set_attribute(attribute:"plugin_type", value:"local");
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:redhat:enterprise_linux:compat-openldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openldap24-libs");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
include('rhel.inc');
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);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '7')) audit(AUDIT_OS_NOT, 'Red Hat 7.x', 'Red Hat ' + 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
var constraints = [
{
'pkgs': [
{'reference':'compat-openldap', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'compat-openldap'},
{'reference':'openldap', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'openldap', 'cves':['CVE-2020-36221', 'CVE-2020-36222', 'CVE-2020-36223', 'CVE-2020-36224', 'CVE-2020-36225', 'CVE-2020-36226', 'CVE-2020-36227', 'CVE-2020-36228', 'CVE-2020-36229', 'CVE-2020-36230', 'CVE-2021-27212', 'CVE-2022-29155', 'CVE-2023-2953']}
]
}
];
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
foreach var pkg ( constraint_array['pkgs'] ) {
var unpatched_pkg = NULL;
var _release = NULL;
var sp = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var exists_check = NULL;
var cves = NULL;
if (!empty_or_null(pkg['unpatched_pkg'])) unpatched_pkg = pkg['unpatched_pkg'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (unpatched_pkg &&
_release &&
(!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
unpatched_package_exists(release:_release, package:unpatched_pkg, cves: cves)) flag++;
}
}
if (flag)
{
var extra = NULL;
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : unpatched_packages_report()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'compat-openldap / openldap');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | 5 | cpe:/o:redhat:enterprise_linux:5 |
redhat | enterprise_linux | 6 | cpe:/o:redhat:enterprise_linux:6 |
redhat | enterprise_linux | 7 | cpe:/o:redhat:enterprise_linux:7 |
redhat | enterprise_linux | compat-openldap | p-cpe:/a:redhat:enterprise_linux:compat-openldap |
redhat | enterprise_linux | openldap | p-cpe:/a:redhat:enterprise_linux:openldap |
redhat | enterprise_linux | openldap24-libs | p-cpe:/a:redhat:enterprise_linux:openldap24-libs |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25709
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25710
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36221
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36222
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36223
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36224
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36225
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36226
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36227
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36228
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36229
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36230
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27212
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-29155
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2953