CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
AI Score
Confidence
Low
EPSS
Percentile
88.8%
Junos OS is prone to a vulnerability in BFD daemon.
# SPDX-FileCopyrightText: 2015 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
CPE = "cpe:/o:juniper:junos";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.106023");
script_version("2023-07-25T05:05:58+0000");
script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
script_tag(name:"creation_date", value:"2015-07-14 10:58:02 +0700 (Tue, 14 Jul 2015)");
script_tag(name:"cvss_base", value:"9.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_tag(name:"qod_type", value:"package");
script_tag(name:"solution_type", value:"VendorFix");
script_cve_id("CVE-2015-5362");
script_name("Juniper Networks Junos OS BFD Crash Vulnerability");
script_category(ACT_GATHER_INFO);
script_family("JunOS Local Security Checks");
script_copyright("Copyright (C) 2015 Greenbone AG");
script_dependencies("gb_juniper_junos_consolidation.nasl");
script_mandatory_keys("juniper/junos/detected");
script_tag(name:"summary", value:"Junos OS is prone to a vulnerability in BFD daemon.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable OS build is present on the target host.");
script_tag(name:"insight", value:"Receipt of a specially crafted BFD packet can cause the BFD
daemon (bfdd) to crash and restart, generating a bfdd core file. The issue can affect all configurations
and topologies utilizing BFD including: single-hop and multi-hop BFD, centralized and distributed mode BFD,
micro-BFD and LSP BFD. Note that the bfdd crash can be triggered by a crafted BFD packet even if BFD is
not enabled on the interface.");
script_tag(name:"impact", value:"Continuous receipt of crafted BFD packets could result in an extended
BFD outage, or in extreme cases could lead to remote code execution.");
script_tag(name:"affected", value:"Junos OS 12.1, 12.3, 13.2, 13.3, 14.1, 14.2 and 15.1");
script_tag(name:"solution", value:"New builds of Junos OS software are available from Juniper. As a
workaround and BFD is not used at all, disable the BFD daemon by 'set system processes
neighbor-liveness disable'");
script_xref(name:"URL", value:"http://kb.juniper.net/JSA10690");
exit(0);
}
include("host_details.inc");
include("revisions-lib.inc");
if (!version = get_app_version(cpe: CPE, nofork: TRUE))
exit(0);
if (version =~ "^12") {
if ((revcomp(a: version, b: "12.1X44-D50") < 0) &&
(revcomp(a: version, b: "12.1X44") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "12.1X46-D35") < 0) &&
(revcomp(a: version, b: "12.1X46") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "12.1X47-D25") < 0) &&
(revcomp(a: version, b: "12.1X47") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "12.3R10") < 0) &&
(revcomp(a: version, b: "12.3") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "12.3X48-D15") < 0) &&
(revcomp(a: version, b: "12.3X") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
}
if (version =~ "^13") {
if (revcomp(a: version, b: "13.2R8") < 0) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "13.3R6") < 0) &&
(revcomp(a: version, b: "13.3") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
}
if (version =~ "^14") {
if (revcomp(a: version, b: "14.1R5") < 0) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "14.1X50-D85") < 0) &&
(revcomp(a: version, b: "14.1X50") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "14.1X55-D20") < 0) &&
(revcomp(a: version, b: "14.1X55") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
else if ((revcomp(a: version, b: "14.2R3") < 0) &&
(revcomp(a: version, b: "14.2") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
}
if (version =~ "^15") {
if ((revcomp(a: version, b: "15.1X49-D10") < 0) &&
(revcomp(a: version, b: "15.1X") >= 0)) {
security_message(port: 0, data: version);
exit(0);
}
}
exit(99);