Vulnerabilities > CVE-2019-0028 - Unspecified vulnerability in Juniper Junos

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
juniper
nessus
NVD
Published: 2019-04-10
Updated: 2022-01-24

Summary

On Junos devices with the BGP graceful restart helper mode enabled or the BGP graceful restart mechanism enabled, a BGP session restart on a remote peer that has the graceful restart mechanism enabled may cause the local routing protocol daemon (RPD) process to crash and restart. By simulating a specific BGP session restart, an attacker can repeatedly crash the RPD process causing prolonged denial of service (DoS). Graceful restart helper mode for BGP is enabled by default. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7; 16.1X65 versions prior to 16.1X65-D48; 16.2 versions prior to 16.2R2-S8; 17.1 versions prior to 17.1R2-S7, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R3; 17.2X75 versions prior to 17.2X75-D92, 17.2X75-D102, 17.2X75-D110; 17.3 versions prior to 17.3R2-S2, 17.3R3; 17.4 versions prior to 17.4R1-S4, 17.4R2; 18.1 versions prior to 18.1R2. Junos OS releases prior to 16.1R1 are not affected.

Vulnerable Configurations

Part Description Count
OS
Juniper
56

Nessus

NASL familyJunos Local Security Checks
NASL idJUNIPER_JSA10932.NASL
descriptionThe version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability On Junos devices with the BGP graceful restart helper mode enabled or the BGP graceful restart mechanism enabled. A remote attacker can exploit this by simulating a specific BGP session restart to cause a denial of service as referenced in the JSA10932 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application
last seen2020-06-01
modified2020-06-02
plugin id124238
published2019-04-23
reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/124238
titleJuniper JSA10932
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(124238);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/17");

  script_cve_id("CVE-2019-0028");

  script_name(english:"Juniper JSA10932");
  script_summary(english:"Checks the Junos version and build date.");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"The version of tested product installed on the remote host is prior to
tested version. It is, therefore, affected by a vulnerability On Junos 
devices with the BGP graceful restart helper mode enabled or the BGP 
graceful restart mechanism enabled. A remote attacker can exploit this
by simulating a specific BGP session restart to cause a denial of
service as referenced in the JSA10932 advisory. Note that Nessus has 
not tested for this issue but has instead relied only on the 
application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/JSA10932");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper
advisory JSA10932");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:"cvss_score_source", value:"CVE-2019-0028");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/23");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Junos Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("junos_version.nasl");
  script_require_keys("Host/Juniper/JUNOS/Version");

  exit(0);
}

include("audit.inc");
include("junos.inc");
include("misc_func.inc");

ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');
fixes = make_array();

fixes["16.1"] = "16.1R7";
fixes["16.1X65"] = "16.1X65-D48";
fixes["16.2"] = "16.2R2-S8";
fixes["17.1"] = "17.1R2-S7";
fixes["17.2"] = "17.2R1-S7";
fixes["17.2X75"] = "17.2X75-D102";
fixes["17.3"] = "17.3R2-S2";
fixes["17.4"] = "17.4R1-S4";
fixes["18.1"] = "18.1R2";

fix = check_junos(ver:ver, fixes:fixes, exit_on_fail:TRUE);
report = get_report(ver:ver, fix:fix);
security_report_v4(severity:SECURITY_WARNING, port:0, extra:report);

References