The mod_dav_svn server in Subversion 1.8.0 through 1.8.11 allows remote attackers to cause a denial of service (memory consumption) via a large number of REPORT requests, which trigger the traversal of FSFS repository nodes. (CVE-2015-0202)
An assertion failure flaw was found in the way the SVN server processed certain requests with dynamically evaluated revision numbers. A remote attacker could use this flaw to cause the SVN server (both svnserve and httpd with the mod_dav_svn module) to crash.
(CVE-2015-0248)
It was found that the mod_dav_svn module did not properly validate the svn:author property of certain requests. An attacker able to create new revisions could use this flaw to spoof the svn:author property.
(CVE-2015-0251)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2015-587.
#
include("compat.inc");
if (description)
{
script_id(85632);
script_version("2.2");
script_cvs_date("Date: 2018/04/18 15:09:35");
script_cve_id("CVE-2015-0202", "CVE-2015-0248", "CVE-2015-0251");
script_xref(name:"ALAS", value:"2015-587");
script_name(english:"Amazon Linux AMI : subversion / mod_dav_svn (ALAS-2015-587)");
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 mod_dav_svn server in Subversion 1.8.0 through 1.8.11 allows
remote attackers to cause a denial of service (memory consumption) via
a large number of REPORT requests, which trigger the traversal of FSFS
repository nodes. (CVE-2015-0202)
An assertion failure flaw was found in the way the SVN server
processed certain requests with dynamically evaluated revision
numbers. A remote attacker could use this flaw to cause the SVN server
(both svnserve and httpd with the mod_dav_svn module) to crash.
(CVE-2015-0248)
It was found that the mod_dav_svn module did not properly validate the
svn:author property of certain requests. An attacker able to create
new revisions could use this flaw to spoof the svn:author property.
(CVE-2015-0251)"
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2015-587.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update subversion mod_dav_svn' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod24_dav_svn");
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:mod_dav_svn-debuginfo");
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-python26");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:subversion-python27");
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:"2015/08/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/26");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2018 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:"mod24_dav_svn-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mod_dav_svn-1.8.13-7.50.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mod_dav_svn-debuginfo-1.8.13-7.50.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-debuginfo-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-devel-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-javahl-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-libs-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-perl-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-python26-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-python27-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-ruby-1.8.13-7.52.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"subversion-tools-1.8.13-7.52.amzn1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mod24_dav_svn / mod_dav_svn / mod_dav_svn-debuginfo / subversion / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | mod24_dav_svn | p-cpe:/a:amazon:linux:mod24_dav_svn |
amazon | linux | mod_dav_svn | p-cpe:/a:amazon:linux:mod_dav_svn |
amazon | linux | mod_dav_svn-debuginfo | p-cpe:/a:amazon:linux:mod_dav_svn-debuginfo |
amazon | linux | subversion | p-cpe:/a:amazon:linux:subversion |
amazon | linux | subversion-debuginfo | p-cpe:/a:amazon:linux:subversion-debuginfo |
amazon | linux | subversion-devel | p-cpe:/a:amazon:linux:subversion-devel |
amazon | linux | subversion-javahl | p-cpe:/a:amazon:linux:subversion-javahl |
amazon | linux | subversion-libs | p-cpe:/a:amazon:linux:subversion-libs |
amazon | linux | subversion-perl | p-cpe:/a:amazon:linux:subversion-perl |
amazon | linux | subversion-python26 | p-cpe:/a:amazon:linux:subversion-python26 |