Vulnerability Name:

CVE-2020-3569 (CCN-187512)

Assigned:2019-12-12
Published:2020-08-29
Updated:2020-10-06
Summary:Multiple vulnerabilities in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to either immediately crash the Internet Group Management Protocol (IGMP) process or make it consume available memory and eventually crash. The memory consumption may negatively impact other processes that are running on the device. These vulnerabilities are due to the incorrect handling of IGMP packets. An attacker could exploit these vulnerabilities by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to immediately crash the IGMP process or cause memory exhaustion, resulting in other processes becoming unstable. These processes may include, but are not limited to, interior and exterior routing protocols. Cisco will release software updates that address these vulnerabilities.
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
8.6 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
7.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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): Changed
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-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-3569

Source: XF
Type: UNKNOWN
cisco-cve20203569-dos(187512)

Source: CCN
Type: Cisco Security Advisory cisco-sa-iosxr-dvmrp-memexh-dSmpdvfz
Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability

Source: CISCO
Type: Vendor Advisory
20200829 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities

Source: CCN
Type: CYBERSECURITY & INFRASTRUCTURE SECURITY AGENCY
KNOWN EXPLOITED VULNERABILITIES CATALOG

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios_xr:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:8201:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:8202:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:8808:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:8812:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:8818:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9000v:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9001:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9006:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9010:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9901:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9903:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9904:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9922:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9912:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9906:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9910:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_540:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_560:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5501:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5502:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5508:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5516:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5001:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5002:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_520:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5011:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_6008:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5501:se:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ncs_5502:se:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ios_xrv_9000_router:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:cisco:ios_xr_software:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco ios xr -
    cisco 8201 -
    cisco 8202 -
    cisco 8808 -
    cisco 8812 -
    cisco 8818 -
    cisco asr 9000v -
    cisco asr 9001 -
    cisco asr 9006 -
    cisco asr 9010 -
    cisco asr 9901 -
    cisco asr 9903 -
    cisco asr 9904 -
    cisco asr 9922 -
    cisco asr 9912 -
    cisco asr 9906 -
    cisco asr 9910 -
    cisco ncs 540 -
    cisco ncs 560 -
    cisco ncs 5501 -
    cisco ncs 5502 -
    cisco ncs 5508 -
    cisco ncs 5516 -
    cisco ncs 5001 -
    cisco ncs 5002 -
    cisco ncs 520 -
    cisco ncs 5011 -
    cisco ncs 6008 -
    cisco ncs 5501 se
    cisco ncs 5502 se
    cisco ios xrv 9000 router -
    cisco ios xr software -