CVE-2020-26941
Description
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.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| eset endpoint_antivirus | v ≤ 7.3 | — |
| eset endpoint_security | v ≤ 7.3 | — |
| eset file_security | v ≤ 7.2 | — |
| eset internet_security | v ≤ 13.2, 1294 | — |
| eset mail_security | v ≤ 7.2 | — |
| eset nod32_antivirus | v ≤ 7.3, v ≤ 13.2 | — |
| eset security | v ≤ 7.2 | — |
| eset smart_security | v ≤ 7.3, v ≤ 13.2 | — |
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