PT-2021-18191 · Unknown · Pear Admin

Ab-Alex · Published 2021-08-12 · Updated 2021-08-23 · CVE-2021-29377

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Pear Admin Think through version 2.1.2

Description: The issue allows attackers to execute arbitrary code remotely due to an arbitrary file upload vulnerability. This is possible because a .php file can be uploaded via the "admin.php/index/upload" endpoint, as the fileExt is mishandled by the UploadService.php in the app/common/service directory.

Recommendations: For version 2.1.2, consider disabling the upload functionality in UploadService.php until a patch is available to prevent the execution of arbitrary code. Restrict access to the "admin.php/index/upload" endpoint to minimize the risk of exploitation.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2021-29377

Affected Products

Pear Admin

References · 4

• 🔥 https://gitee.com/pear-admin/Pear-Admin-Think/issues/I3DI3T · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-29377 · Security Note
• https://osv.dev/vulnerability/CVE-2021-29377 · Vendor Advisory
• https://t.me/cvenotify/19901 · Telegram Post