Vulnerability Name:

CVE-2021-20022 (CCN-199736)

Assigned:2020-12-17
Published:2021-04-09
Updated:2021-04-14
Summary:SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to upload an arbitrary file to the remote host.
CVSS v3 Severity:7.2 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/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): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
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:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
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-434
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-20022

Source: XF
Type: UNKNOWN
sonicwall-cve202120022-file-upload(199736)

Source: CCN
Type: SNWLID-2021-0008
SonicWall Email Security post-authentication arbitrary file creation vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0008

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

Vulnerable Configuration:Configuration 1:
  • cpe:/a:sonicwall:email_security:*:*:*:*:*:*:*:* (Version < 10.0.9.6103)
  • OR cpe:/a:sonicwall:hosted_email_security:*:*:*:*:*:*:*:* (Version < 10.0.9.6103)

    • Configuration CCN 1:
  • cpe:/a:sonicwall:e-mail_security:6.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:sonicwall:email_security_appliance:10.0.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    sonicwall email security *
    sonicwall hosted email security *
    sonicwall e-mail security 6.1.1
    sonicwall email security appliance 10.0.2