CVE-2020-7877 ZOOK solution(remote administration tool) buffer overflow vulnerability
A buffer overflow in ZOOK remote administration tool allows attackers to execute arbitrary code via a crafted OUTERIP value.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-7877?
CVE-2020-7877 is a high-severity memory corruption vulnerability in mastersoft ZOOKAgentSetup.exe, published on 7 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.
Weakness: CWE-120
Which versions are affected by CVE-2020-7877?
It affects 2 products.
Products include Mastersoft Zook Agent, Mastersoft Zook Viewer.
How do I fix CVE-2020-7877?
No fix has been published for CVE-2020-7877 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-7877 being exploited?
There is no known exploitation of CVE-2020-7877 in the wild and no public exploit code.
Sources
Also known as GHSA-4p59-rrxq-mw63.