5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
0.026 Low
EPSS
Percentile
90.4%
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1121 advisory.
httpd: Out of bounds write in mod_authnz_ldap when using too small Accept-Language values (CVE-2017-15710)
httpd: Out of bounds access after failure in reading the HTTP request (CVE-2018-1301)
httpd: mod_session_cookie does not respect expiry time (CVE-2018-17199)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:1121 and
# CentOS Errata and Security Advisory 2020:1121 respectively.
#
include("compat.inc");
if (description)
{
script_id(135341);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/05");
script_cve_id("CVE-2017-15710", "CVE-2018-1301", "CVE-2018-17199");
script_xref(name:"RHSA", value:"2020:1121");
script_name(english:"CentOS 7 : httpd (CESA-2020:1121)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote CentOS host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:1121 advisory.
- httpd: Out of bounds write in mod_authnz_ldap when using
too small Accept-Language values (CVE-2017-15710)
- httpd: Out of bounds access after failure in reading the
HTTP request (CVE-2018-1301)
- httpd: mod_session_cookie does not respect expiry time
(CVE-2018-17199)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number."
);
# https://lists.centos.org/pipermail/centos-cr-announce/2020-April/012463.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?8029e7da"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected httpd packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
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:N/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-17199");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd-manual");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_proxy_html");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_session");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_ssl");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/26");
script_set_attribute(attribute:"patch_publication_date", value:"2020/04/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/10");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"CentOS Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"httpd-2.4.6-93.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"httpd-devel-2.4.6-93.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"httpd-manual-2.4.6-93.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"httpd-tools-2.4.6-93.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_ldap-2.4.6-93.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_proxy_html-2.4.6-93.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_session-2.4.6-93.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_ssl-2.4.6-93.el7.centos")) flag++;
if (flag)
{
cr_plugin_caveat = '\n' +
'NOTE: The security advisory associated with this vulnerability has a\n' +
'fixed package version that may only be available in the continuous\n' +
'release (CR) repository for CentOS, until it is present in the next\n' +
'point release of CentOS.\n\n' +
'If an equal or higher package level does not exist in the baseline\n' +
'repository for your major version of CentOS, then updates from the CR\n' +
'repository will need to be applied in order to address the\n' +
'vulnerability.\n';
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get() + cr_plugin_caveat
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "httpd / httpd-devel / httpd-manual / httpd-tools / mod_ldap / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
centos | centos | 7 | cpe:/o:centos:centos:7 |
centos | centos | httpd | p-cpe:/a:centos:centos:httpd |
centos | centos | mod_ldap | p-cpe:/a:centos:centos:mod_ldap |
centos | centos | httpd-manual | p-cpe:/a:centos:centos:httpd-manual |
centos | centos | httpd-tools | p-cpe:/a:centos:centos:httpd-tools |
centos | centos | mod_session | p-cpe:/a:centos:centos:mod_session |
centos | centos | mod_ssl | p-cpe:/a:centos:centos:mod_ssl |
centos | centos | httpd-devel | p-cpe:/a:centos:centos:httpd-devel |
centos | centos | mod_proxy_html | p-cpe:/a:centos:centos:mod_proxy_html |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
0.026 Low
EPSS
Percentile
90.4%