CVE-2020-26941 Path traversal in n/a
A local low-privileged user can overwrite arbitrary files via symlink during installation if Self-Defense is disabled, potentially leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-26941?
CVE-2020-26941 is a medium-severity path traversal vulnerability in n/a, published on 21 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-276
Which versions are affected by CVE-2020-26941?
It affects 8 products.
Products include Eset Endpoint Antivirus, Eset Endpoint Security, Eset File Security, Eset Internet Security, Eset Mail Security, Eset Nod32 Antivirus and 2 more.
How do I fix CVE-2020-26941?
No fix has been published for CVE-2020-26941 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-26941 being exploited?
There is no known exploitation of CVE-2020-26941 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2024-0353 Local privilege escalation in Windows products
- CVE-2023-3160 Local privilege escalation in security products for Windows
- CVE-2021-37852 LPE in ESET products for Windows
- CVE-2023-5594 Improper following of a certificate's chain of trust in ESET security products
- CVE-2021-37851 Local Privilege Escalation in ESET product for Windows
Sources
Also known as GHSA-3855-w94p-4hp9.