CVE-2023-33237 Authentication Bypass Without Administrator Privilege
Attackers can bypass authentication to execute restricted actions on Moxa TN-5900 switches, leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-33237?
CVE-2023-33237 is a high-severity authentication bypass vulnerability in Moxa TN-5900 Series, published on 17 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
TN-5900 Series firmware version v3.3 and prior is vulnerable to improper-authentication vulnerability. This vulnerability arises from inadequate authentication measures implemented in the web API handler, allowing low-privileged APIs to execute restricted actions that only high-privileged APIs are allowed This presents a potential risk of unauthorized exploitation by malicious actors.
Which versions are affected by CVE-2023-33237?
It affects 1 product.
Products include Moxa Tn-5900 Firmware.
How do I fix CVE-2023-33237?
No fix has been published for CVE-2023-33237 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-33237 being exploited?
There is no known exploitation of CVE-2023-33237 in the wild and no public exploit code.
Other vulnerabilities in Moxa TN-5900 Series
- CVE-2021-46560 Command injection in n/a
- CVE-2023-34213 Second Order Command-injection Vulnerability in the Key-generation Function
- CVE-2021-46559 Weak cryptography in n/a
- CVE-2023-34215 Second Order Command-injection Vulnerability in the Certificate-generation Function
- CVE-2023-3336 TN-5900 Series User Enumeration Vulnerability
Sources
Also known as GHSA-p33g-779c-ccmq.