Vulnerability Monitor

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CVE-2020-26941

A local (authenticated) low-privileged user can exploit a behavior in an ESET installer to achieve arbitrary file overwrite (deletion) of any file via a symlink, due to insecure permissions. The possibility of exploiting this vulnerability is limited and can only take place during the installation phase of ESET products. Furthermore, exploitation can only succeed when Self-Defense is disabled. Affected products are: ESET NOD32 Antivirus, ESET Internet Security, ESET Smart Security, ESET Smart Security Premium versions 13.2 and lower; ESET Endpoint Antivirus, ESET Endpoint Security, ESET NOD32 Antivirus Business Edition, ESET Smart Security Business Edition versions 7.3 and lower; ESET File Security for Microsoft Windows Server, ESET Mail Security for Microsoft Exchange Server, ESET Mail Security for IBM Domino, ESET Security for Kerio, ESET Security for Microsoft SharePoint Server versions 7.2 and lower.

Published

2021-01-26T18:15:45.613

Last Modified

2024-11-21T05:20:32.763

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:P/A:P

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

3.9

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-276
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application eset endpoint_antivirus ≤ 7.3 Yes
Application eset endpoint_security ≤ 7.3 Yes
Application eset file_security ≤ 7.2 Yes
Application eset internet_security ≤ 13.2 Yes
Application eset internet_security 1294 Yes
Application eset mail_security ≤ 7.2 Yes
Application eset mail_security ≤ 7.2 Yes
Application eset nod32_antivirus ≤ 7.3 Yes
Application eset nod32_antivirus ≤ 13.2 Yes
Application eset security ≤ 7.2 Yes
Application eset security ≤ 7.2 Yes
Application eset smart_security ≤ 7.3 Yes
Application eset smart_security ≤ 13.2 Yes
Application eset smart_security ≤ 13.2 Yes
References