CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
EPSS
Percentile
95.0%
A flaw was found in the way the mod_dav_svn module handled OPTIONS requests. A remote attacker with read access to an SVN repository served via HTTP could use this flaw to cause the httpd process that handled such a request to crash.
The get_resource function in repos.c in the mod_dav_svn module in Apache Subversion before 1.7.15 and 1.8.x before 1.8.6, when SVNListParentPath is enabled, allows remote attackers to cause a denial of service (crash) via vectors related to the server root and request methods other than GET, as demonstrated by the ‘svn ls http://svn.example.com’ command.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2014-318.
#
include("compat.inc");
if (description)
{
script_id(73237);
script_version("1.5");
script_cvs_date("Date: 2018/04/18 15:09:35");
script_cve_id("CVE-2014-0032");
script_xref(name:"ALAS", value:"2014-318");
script_name(english:"Amazon Linux AMI : subversion (ALAS-2014-318)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Amazon Linux AMI host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"A flaw was found in the way the mod_dav_svn module handled OPTIONS
requests. A remote attacker with read access to an SVN repository
served via HTTP could use this flaw to cause the httpd process that
handled such a request to crash.
The get_resource function in repos.c in the mod_dav_svn module in
Apache Subversion before 1.7.15 and 1.8.x before 1.8.6, when
SVNListParentPath is enabled, allows remote attackers to cause a
denial of service (crash) via vectors related to the server root and
request methods other than GET, as demonstrated by the 'svn ls
http://svn.example.com' command."
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2014-318.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update subversion' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_dav_svn");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-javahl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-perl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-ruby");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-tools");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2014/03/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/03/28");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");
script_family(english:"Amazon Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (rpm_check(release:"ALA", reference:"mod_dav_svn-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-debuginfo-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-devel-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-javahl-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-libs-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-perl-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-python-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-ruby-1.8.8-1.42.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-tools-1.8.8-1.42.amzn1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mod_dav_svn / subversion / subversion-debuginfo / subversion-devel / etc");
}