PT-2021-21119 · 7 Zip · 7Z.Exe

Nick Nam + 1 · Published 2021-07-13 · Updated 2021-07-15 · CVE-2021-36122

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Echo ShareCare version 8.15.5

Description: An issue was discovered in the UnzipFile feature, specifically in Access/EligFeedParse Sup/UnzipFile Upd.cfm, which is susceptible to a command argument injection vulnerability. This occurs when processing remote input in the zippass parameter from an authenticated user, allowing the injection of arbitrary arguments to 7z.exe.

Recommendations: For Echo ShareCare version 8.15.5, consider disabling the UnzipFile feature or restricting access to the zippass parameter in the UnzipFile Upd.cfm file until a patch is available. Additionally, restrict the execution of 7z.exe to prevent arbitrary argument injection.

Fix

Argument Injection

Weakness Enumeration

CWE-88

Related Identifiers

CVE-2021-36122

Affected Products

7Z.Exe

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-36122 · Security Note
• https://osv.dev/vulnerability/CVE-2021-36122 · Vendor Advisory
• https://github.com/atredispartners/advisories/blob/master/ATREDIS-2021-0001.md · Note
• https://t.me/cvenotify/17530 · Telegram Post