Vulnerability Name:

CVE-2020-1640 (CCN-184774)

Assigned:2019-11-04
Published:2020-07-08
Updated:2020-07-24
Summary:An improper use of a validation framework when processing incoming genuine BGP packets within Juniper Networks RPD (routing protocols process) daemon allows an attacker to crash RPD thereby causing a Denial of Service (DoS) condition. This framework requires these packets to be passed. By continuously sending any of these types of formatted genuine packets, an attacker can repeatedly crash the RPD process causing a sustained Denial of Service. Authentication to the BGP peer is not required. This issue can be initiated or propagated through eBGP and iBGP and can impact devices in either modes of use as long as the devices are configured to support the compromised framework and a BGP path is activated or active. This issue affects: Juniper Networks Junos OS 16.1 versions 16.1R7-S6 and later versions prior to 16.1R7-S8; 17.3 versions 17.3R2-S5, 17.3R3-S6 and later versions prior to 17.3R3-S8; 17.4 versions 17.4R2-S7, 17.4R3 and later versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions 18.1R3-S7 and later versions prior to 18.1R3-S10; 18.2 versions 18.2R2-S6, 18.2R3-S2 and later versions prior to 18.2R2-S7, 18.2R3-S5; 18.2X75 versions 18.2X75-D12, 18.2X75-D32, 18.2X75-D33, 18.2X75-D51, 18.2X75-D60, 18.2X75-D411, 18.2X75-D420 and later versions prior to 18.2X75-D32, 18.2X75-D33, 18.2X75-D420, 18.2X75-D52, 18.2X75-D60, 18.2X75-D65, 18.2X75-D70;(*1) 18.3 versions 18.3R1-S6, 18.3R2-S3, 18.3R3 and later versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions 18.4R1-S5, 18.4R2-S4, 18.4R3 and later versions prior to 18.4R1-S7, 18.4R2-S5, 18.4R3-S3(*2); 19.1 versions 19.1R1-S3, 19.1R2 and later versions prior to 19.1R1-S5, 19.1R2-S2, 19.1R3-S2; 19.2 versions 19.2R1-S2, 19.2R2 and later versions prior to 19.2R1-S5, 19.2R2, 19.2R3; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S2, 19.4R2, 19.4R3; 20.1 versions prior to 20.1R1-S1, 20.1R2. This issue does not affect Junos OS prior to 16.1R1. This issue affects IPv4 and IPv6 traffic.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-1640

Source: XF
Type: UNKNOWN
juniper-cve20201640-dos(184774)

Source: CCN
Type: Juniper Networks Security Bulletin JSA11024
Junos OS: Receipt of certain genuine BGP packets from any BGP Speaker causes RPD to crash. (CVE-2020-1640)

Source: MISC
Type: Vendor Advisory
https://kb.juniper.net/JSA11024

Vulnerable Configuration:Configuration 1:
  • cpe:/o:juniper:junos:16.1:r7-s6:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:16.1:r7-s7:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.3:r2-s5:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.3:r3-s6:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.3:r3-s7:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.4:r2-s10:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.4:r2-s7:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.4:r2-s8:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.4:r2-s9:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.4:r3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.4:r3-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.1:r3-s7:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2:r2-s6:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.3:r1-s6:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2:r3-s2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.1:r3-s8:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.3:r3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.1:r2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.4:r3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.3:r3-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.1:r3-s9:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.1:r1-s4:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.4:r1-s6:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.3:r2-s3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2:r3-s3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2:r3-s4:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2x75:d12:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2x75:d51:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2x75:d411:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.4:r3-s2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.4:r3-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.4:r2-s4:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.1:r2-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.1:r3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.2:r1-s2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.3:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.3:r1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.2:r1-s3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.4:r1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.3:r2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.3:r2-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.3:r1-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.2:r1-s4:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:20.1:r1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.3:r2-s2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.1:r3-s1:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:juniper:junos:16.1:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:16.2:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.1:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.2:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.3:-:*:*:*:*:*:*
  • OR cpe:/a:juniper:junos:18.1:-:*:*:*:*:*:*
  • OR cpe:/a:juniper:junos:18.2:*:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:17.4:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.2x75:*:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.3:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:18.4:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.1:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.2:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.3:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:19.4:r1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:20.1:r1:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    juniper junos 16.1 r7-s6
    juniper junos 16.1 r7-s7
    juniper junos 17.3 r2-s5
    juniper junos 17.3 r3-s6
    juniper junos 17.3 r3-s7
    juniper junos 17.4 r2-s10
    juniper junos 17.4 r2-s7
    juniper junos 17.4 r2-s8
    juniper junos 17.4 r2-s9
    juniper junos 17.4 r3
    juniper junos 17.4 r3-s1
    juniper junos 18.1 r3-s7
    juniper junos 19.1 r1-s3
    juniper junos 18.2 r2-s6
    juniper junos 18.4 r1-s5
    juniper junos 18.3 r1-s6
    juniper junos 18.2 r3-s2
    juniper junos 18.1 r3-s8
    juniper junos 18.3 r3
    juniper junos 19.1 r2
    juniper junos 18.4 r3
    juniper junos 18.3 r3-s1
    juniper junos 18.1 r3-s9
    juniper junos 19.1 r1-s4
    juniper junos 18.4 r1-s6
    juniper junos 18.3 r2-s3
    juniper junos 18.2 r3-s3
    juniper junos 18.2 r3-s4
    juniper junos 18.2x75 d12
    juniper junos 18.2x75 d51
    juniper junos 18.2x75 d411
    juniper junos 18.4 r3-s2
    juniper junos 18.4 r3-s1
    juniper junos 18.4 r2-s4
    juniper junos 19.1 r2-s1
    juniper junos 19.1 r3
    juniper junos 19.2 r1-s2
    juniper junos 19.3 -
    juniper junos 19.3 r1
    juniper junos 19.2 r1-s3
    juniper junos 19.4 r1
    juniper junos 19.3 r2
    juniper junos 19.3 r2-s1
    juniper junos 19.3 r1-s1
    juniper junos 19.2 r1-s4
    juniper junos 20.1 r1
    juniper junos 19.4 r1-s1
    juniper junos 19.3 r2-s2
    juniper junos 19.1 r3-s1
    juniper junos 16.1 -
    juniper junos 16.2 -
    juniper junos 17.1 -
    juniper junos 17.2 -
    juniper junos 17.3 -
    juniper junos 18.1 -
    juniper junos 18.2
    juniper junos 17.4 -
    juniper junos 18.2x75
    juniper junos 18.3 -
    juniper junos 18.4 -
    juniper junos 19.1 -
    juniper junos 19.2 -
    juniper junos 19.3 -
    juniper junos 19.4 r1
    juniper junos 20.1 r1