Vulnerability Name:

CVE-2021-20023 (CCN-200480)

Assigned:2020-12-17
Published:2021-04-20
Updated:2022-07-14
Summary:SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.
CVSS v3 Severity:4.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N)
4.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
6.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:H)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): Low
Availibility (A): High
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
8.7 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:P/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Partial
Availibility (A): Complete
Vulnerability Type:CWE-22
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-20023

Source: XF
Type: UNKNOWN
sonicwall-cve202120023-dir-traversal(200480)

Source: CCN
Type: SonicWall Security Advisory SNWLID-2021-0010
SonicWall Email Security post-authentication arbitrary file read vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0010

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

Vulnerable Configuration:Configuration 1:
  • cpe:/a:sonicwall:email_security:*:*:*:*:*:email_security_virtual_appliance:*:* (Version < 10.0.9.6173)
  • OR cpe:/a:sonicwall:hosted_email_security:*:*:*:*:*:*:*:* (Version < 10.0.9.6173)
  • OR cpe:/a:sonicwall:email_security:*:*:*:*:*:windows:*:* (Version < 10.0.9.6173)

    • Configuration CCN 1:
  • cpe:/a:sonicwall:email_security:10.0.9:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    sonicwall email security *
    sonicwall hosted email security *
    sonicwall email security *
    sonicwall email security 10.0.9