6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.974 High
EPSS
Percentile
99.9%
Security Fix(es) :
A use-after-free flaw was found in the way httpd handled invalid and previously unregistered HTTP methods specified in the Limit directive used in an .htaccess file. A remote attacker could possibly use this flaw to disclose portions of the server memory, or cause httpd child process to crash. (CVE-2017-9798)
A regression was found in the Scientific Linux 6.9 version of httpd, causing comments in the ‘Allow’ and ‘Deny’ configuration lines to be parsed incorrectly. A web administrator could unintentionally allow any client to access a restricted HTTP resource. (CVE-2017-12171)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(104007);
script_version("3.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2017-12171", "CVE-2017-9798");
script_name(english:"Scientific Linux Security Update : httpd on SL6.x i386/x86_64 (20171019) (Optionsbleed)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"Security Fix(es) :
- A use-after-free flaw was found in the way httpd handled
invalid and previously unregistered HTTP methods
specified in the Limit directive used in an .htaccess
file. A remote attacker could possibly use this flaw to
disclose portions of the server memory, or cause httpd
child process to crash. (CVE-2017-9798)
- A regression was found in the Scientific Linux 6.9
version of httpd, causing comments in the 'Allow' and
'Deny' configuration lines to be parsed incorrectly. A
web administrator could unintentionally allow any client
to access a restricted HTTP resource. (CVE-2017-12171)"
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1710&L=scientific-linux-errata&F=&S=&P=12001
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?b44b9094"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
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:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:httpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:httpd-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:httpd-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:httpd-manual");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:httpd-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:mod_ssl");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/09/18");
script_set_attribute(attribute:"patch_publication_date", value:"2017/10/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/20");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 6.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL6", reference:"httpd-2.2.15-60.el6_9.6")) flag++;
if (rpm_check(release:"SL6", reference:"httpd-debuginfo-2.2.15-60.el6_9.6")) flag++;
if (rpm_check(release:"SL6", reference:"httpd-devel-2.2.15-60.el6_9.6")) flag++;
if (rpm_check(release:"SL6", reference:"httpd-manual-2.2.15-60.el6_9.6")) flag++;
if (rpm_check(release:"SL6", reference:"httpd-tools-2.2.15-60.el6_9.6")) flag++;
if (rpm_check(release:"SL6", reference:"mod_ssl-2.2.15-60.el6_9.6")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "httpd / httpd-debuginfo / httpd-devel / httpd-manual / httpd-tools / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | httpd | p-cpe:/a:fermilab:scientific_linux:httpd |
fermilab | scientific_linux | httpd-debuginfo | p-cpe:/a:fermilab:scientific_linux:httpd-debuginfo |
fermilab | scientific_linux | httpd-devel | p-cpe:/a:fermilab:scientific_linux:httpd-devel |
fermilab | scientific_linux | httpd-manual | p-cpe:/a:fermilab:scientific_linux:httpd-manual |
fermilab | scientific_linux | httpd-tools | p-cpe:/a:fermilab:scientific_linux:httpd-tools |
fermilab | scientific_linux | mod_ssl | p-cpe:/a:fermilab:scientific_linux:mod_ssl |
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |
6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.974 High
EPSS
Percentile
99.9%