CVE-2020-15843 Privilege escalation in n/a
Local attackers can escalate privileges by replacing executables in insecurely permissioned ActFax installation directories.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-15843?
CVE-2020-15843 is a high-severity vulnerability in n/a, published on 24 Sep 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
ActFax Version 7.10 Build 0335 (2020-05-25) is susceptible to a privilege escalation vulnerability due to insecure folder permissions on %PROGRAMFILES%\ActiveFax\Client\, %PROGRAMFILES%\ActiveFax\Install\ and %PROGRAMFILES%\ActiveFax\Terminal\. The folder permissions allow "Full Control" to "Everyone". An authenticated local attacker can exploit this to replace the TSClientB.exe binary in the Terminal directory, which is executed on logon for every user. Alternatively, the attacker can replace any of the binaries in the Client or Install directories. The latter requires additional user interaction, for example starting the client.
Weakness: CWE-276
Which versions are affected by CVE-2020-15843?
It affects 1 product.
Products include Actfax Actfax.
How do I fix CVE-2020-15843?
No fix has been published for CVE-2020-15843 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-15843 being exploited?
There is no known exploitation of CVE-2020-15843 in the wild and no public exploit code.
Sources
Also known as GHSA-pqx5-jwv2-ffhr.