4.9

CVE-2021-20023

Warning

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.

Data is provided by the National Vulnerability Database (NVD)
Sonicwall ≫ Email Security SwPlatformemail_security_virtual_appliance Version < 10.0.9.6173
Sonicwall ≫ Email Security SwPlatformwindows Version < 10.0.9.6173
Sonicwall ≫ Hosted Email Security Version < 10.0.9.6173

03.11.2021: CISA Known Exploited Vulnerabilities (KEV) Catalog

SonicWall Email Security Path Traversal Vulnerability

Vulnerability

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.

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 58.89% 0.981
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 4.9 1.2 3.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
nvd@nist.gov 4 8 2.9
AV:N/AC:L/Au:S/C:P/I:N/A:N
134c704f-9b21-4f2e-91b3-4a467353bcc0 4.9 1.2 3.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.