CVE-2023-35136 Information disclosure in ATP series firmware
An authenticated local attacker can access configuration files on Zyxel ATP, USG FLEX, and VPN series devices due to improper input validation in the Quagga package.
- 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-2023-35136?
CVE-2023-35136 is a medium-severity vulnerability in Zyxel ATP series firmware, published on 28 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An improper input validation vulnerability in the “Quagga” package of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to access configuration files on an affected device.
Weakness: CWE-20
Which versions are affected by CVE-2023-35136?
It affects 1 product.
Products include Zyxel Zld.
How do I fix CVE-2023-35136?
No fix has been published for CVE-2023-35136 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-35136 being exploited?
There is no known exploitation of CVE-2023-35136 in the wild and no public exploit code.
Other vulnerabilities in Zyxel ATP series firmware
Sources
Also known as GHSA-7pcw-5pmh-x8wr.