CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
96.5%
This update for quagga to version 1.1.1 fixes the following issues :
This security issue was fixed :
These non-security issues were fixed :
Disabled passwords in default zebra.conf config file, causing to disable vty telnet interface by default. The vty interface is available via ‘vtysh’ utility using pam authentication to permit management access for root without password (boo#1021669).
Changed owner of /etc/quagga to quagga:quagga to permit to manage quagga via vty interface.
Added quagga.log and create and su statemets to logrotate config, changed default zebra log file name from quagga.log to zebra.log.
Added libfpm_pb0 and libquagga_pb0 shared library sub-packages, adjusted libzebra0 sub-package name to libzebra1.
Do not enable zebra’s tcp interface (port 2600) to use default unix socket for communication between the daemons
A digest of the other changes by the version upgrade :
isisd: Fix size of malloc
isisd: check for the existance of the correct list
ospf6d: fix off-by-one on display of spf reasons
ospf6d: don’t access nexthops out of bounds
bgpd: fix off-by-one in attribute flags handling
bgpd: Fix buffer overflow error in bgp_dump_routes_func
Please http://mirror.easyname.at/nongnu/quagga/quagga-1.1.1.changelog.txt and the changelog for a complete list of changes.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2017-551.
#
# The text description of this plugin is (C) SUSE LLC.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(100037);
script_version("3.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2017-5495");
script_name(english:"openSUSE Security Update : quagga (openSUSE-2017-551)");
script_summary(english:"Check for the openSUSE-2017-551 patch");
script_set_attribute(
attribute:"synopsis",
value:"The remote openSUSE host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"This update for quagga to version 1.1.1 fixes the following issues :
This security issue was fixed :
- CVE-2017-5495: Quagga was vulnerable to an unbounded
memory allocation in the telnet 'vty' CLI, leading to a
Denial-of-Service of Quagga daemons, or even the entire
host. When Quagga daemons are configured with their
telnet CLI enabled, anyone who can connect to the TCP
ports can trigger this vulnerability, prior to
authentication (bsc#1021669).
These non-security issues were fixed :
- Disabled passwords in default zebra.conf config file,
causing to disable vty telnet interface by default. The
vty interface is available via 'vtysh' utility using pam
authentication to permit management access for root
without password (boo#1021669).
- Changed owner of /etc/quagga to quagga:quagga to permit
to manage quagga via vty interface.
- Added quagga.log and create and su statemets to
logrotate config, changed default zebra log file name
from quagga.log to zebra.log.
- Added libfpm_pb0 and libquagga_pb0 shared library
sub-packages, adjusted libzebra0 sub-package name to
libzebra1.
- Do not enable zebra's tcp interface (port 2600) to use
default unix socket for communication between the
daemons
A digest of the other changes by the version upgrade :
- isisd: Fix size of malloc
- isisd: check for the existance of the correct list
- ospf6d: fix off-by-one on display of spf reasons
- ospf6d: don't access nexthops out of bounds
- bgpd: fix off-by-one in attribute flags handling
- bgpd: Fix buffer overflow error in bgp_dump_routes_func
Please
http://mirror.easyname.at/nongnu/quagga/quagga-1.1.1.changelog.txt and
the changelog for a complete list of changes."
);
script_set_attribute(
attribute:"see_also",
value:"http://mirror.easyname.at/nongnu/quagga/quagga-1.1.1.changelog.txt"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1021669"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected quagga packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libfpm_pb0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libfpm_pb0-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libospf0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libospf0-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libospfapiclient0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libospfapiclient0-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libquagga_pb0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libquagga_pb0-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libzebra1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libzebra1-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:quagga");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:quagga-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:quagga-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:quagga-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2");
script_set_attribute(attribute:"patch_publication_date", value:"2017/05/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/09");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 Tenable Network Security, Inc.");
script_family(english:"SuSE Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
flag = 0;
if ( rpm_check(release:"SUSE42.2", reference:"libfpm_pb0-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libfpm_pb0-debuginfo-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libospf0-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libospf0-debuginfo-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libospfapiclient0-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libospfapiclient0-debuginfo-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libquagga_pb0-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libquagga_pb0-debuginfo-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libzebra1-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libzebra1-debuginfo-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"quagga-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"quagga-debuginfo-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"quagga-debugsource-1.1.1-16.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"quagga-devel-1.1.1-16.3.1") ) 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, "libfpm_pb0 / libfpm_pb0-debuginfo / libospf0 / libospf0-debuginfo / etc");
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
96.5%