CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
EPSS
Percentile
89.5%
The is_this_legal function in mod_dontdothat for Apache Subversion 1.4.0 through 1.7.13 and 1.8.0 through 1.8.4 allows remote attackers to bypass intended access restrictions and possibly cause a denial of service (resource consumption) via a relative URL in a REPORT request.
The get_parent_resource function in repos.c in mod_dav_svn Apache HTTPD server module in Subversion 1.7.11 through 1.7.13 and 1.8.1 through 1.8.4, when built with assertions enabled and SVNAutoversioning is enabled, allows remote attackers to cause a denial of service (assertion failure and Apache process abort) via a non-canonical URL in a request, as demonstrated using a trailing /.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2013-269.
#
include("compat.inc");
if (description)
{
script_id(71581);
script_version("1.4");
script_cvs_date("Date: 2018/04/18 15:09:35");
script_cve_id("CVE-2013-4505", "CVE-2013-4558");
script_xref(name:"ALAS", value:"2013-269");
script_name(english:"Amazon Linux AMI : subversion (ALAS-2013-269)");
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:
"The is_this_legal function in mod_dontdothat for Apache Subversion
1.4.0 through 1.7.13 and 1.8.0 through 1.8.4 allows remote attackers
to bypass intended access restrictions and possibly cause a denial of
service (resource consumption) via a relative URL in a REPORT request.
The get_parent_resource function in repos.c in mod_dav_svn Apache
HTTPD server module in Subversion 1.7.11 through 1.7.13 and 1.8.1
through 1.8.4, when built with assertions enabled and
SVNAutoversioning is enabled, allows remote attackers to cause a
denial of service (assertion failure and Apache process abort) via a
non-canonical URL in a request, as demonstrated using a trailing /."
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2013-269.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:S/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:"2013/12/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/23");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2013-2018 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-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-debuginfo-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-devel-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-javahl-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-libs-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-perl-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-python-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-ruby-1.7.14-1.36.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-tools-1.7.14-1.36.amzn1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
else security_note(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");
}