Vulnerability CVE-2020-28337


Published: 2021-02-15

Description:
A directory traversal issue in the Utils/Unzip module in Microweber through 1.1.20 allows an authenticated attacker to gain remote code execution via the backup restore feature. To exploit the vulnerability, an attacker must have the credentials of an administrative user, upload a maliciously constructed ZIP file with file paths including relative paths (i.e., ../../), move this file into the backup directory, and execute a restore on this file.

See advisories in our WLB2 database:
Topic
Author
Date
High
Microweber CMS 1.1.20 Remote Code Execution (Authenticated)
sl1nki
11.05.2021

Type:

CWE-22

(Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Microweber -> Microweber 

 References:
https://github.com/microweber/microweber/commit/777ee9c3e7519eb3672c79ac41066175b2001b50
https://sl1nki.page/advisories/CVE-2020-28337
https://sl1nki.page/blog/2021/02/01/microweber-zip-slip

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