CVE-2021-20023
SonicWall Email Security Path Traversal Vulnerability
Severity Score
4.9
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
Yes
*KEV
Decision
Attend
*SSVC
Descriptions
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.
SonicWall Email Security versión 10.0.9.x, contiene una vulnerabilidad que permite a un atacante autenticado posteriormente leer un archivo arbitrario en el host remoto
SonicWall Email Security contains a path traversal vulnerability that allows a post-authenticated attacker to read files on the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20021 and CVE-2021-20022 to achieve privilege escalation.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-12-17 CVE Reserved
- 2021-04-20 CVE Published
- 2021-11-03 Exploited in Wild
- 2021-11-17 KEV Due Date
- 2025-06-11 EPSS Updated
- 2025-07-30 CVE Updated
- ---------- First Exploit
CWE
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0010 | 2022-07-14 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Sonicwall Search vendor "Sonicwall" | Email Security Search vendor "Sonicwall" for product "Email Security" | < 10.0.9.6173 Search vendor "Sonicwall" for product "Email Security" and version " < 10.0.9.6173" | email_security_virtual_appliance |
Affected
| ||||||
| Sonicwall Search vendor "Sonicwall" | Email Security Search vendor "Sonicwall" for product "Email Security" | < 10.0.9.6173 Search vendor "Sonicwall" for product "Email Security" and version " < 10.0.9.6173" | windows |
Affected
| ||||||
| Sonicwall Search vendor "Sonicwall" | Hosted Email Security Search vendor "Sonicwall" for product "Hosted Email Security" | < 10.0.9.6173 Search vendor "Sonicwall" for product "Hosted Email Security" and version " < 10.0.9.6173" | - |
Affected
| ||||||