Vulnerability Name:

CVE-2020-3375 (CCN-186038)

Assigned:2019-12-12
Published:2020-07-29
Updated:2021-08-06
Summary:A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access, make changes to the system that they are not authorized to make, and execute commands on an affected system with privileges of the root user.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-3375

Source: XF
Type: UNKNOWN
cisco-cve20203375-bo(186038)

Source: CCN
Type: Cisco Security Advisory cisco-sa-sdbufof-h5f5VSeL
Cisco SD-WAN Solution Software Buffer Overflow Vulnerability

Source: CISCO
Type: Vendor Advisory
20200729 Cisco SD-WAN Solution Software Buffer Overflow Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:sd-wan:*:*:*:*:*:*:*:* (Version <= 18.3.0)
  • OR cpe:/a:cisco:sd-wan:*:*:*:*:*:*:*:* (Version >= 18.4.0 and < 18.4.5)
  • OR cpe:/a:cisco:sd-wan:*:*:*:*:*:*:*:* (Version >= 19.2.0 and < 19.2.2)
  • OR cpe:/a:cisco:sd-wan:*:*:*:*:*:*:*:* (Version >= 19.3.0 and < 20.1.1)

    • Configuration 2:
  • cpe:/o:cisco:ios_xe_sd-wan:*:*:*:*:*:*:*:* (Version <= 16.9.0)
  • OR cpe:/o:cisco:ios_xe_sd-wan:*:*:*:*:*:*:*:* (Version >= 16.12.0 and <= 16.12.4)
  • OR cpe:/o:cisco:ios_xe_sd-wan:*:*:*:*:*:*:*:* (Version >= 17.2.0 and <= 17.2.1)

    • * Denotes that component is vulnerable
    BACK
    cisco sd-wan *
    cisco sd-wan *
    cisco sd-wan *
    cisco sd-wan *
    cisco ios xe sd-wan *
    cisco ios xe sd-wan *
    cisco ios xe sd-wan *