CVE-2021-44769 TLS Certificate Generation Function Improper Input Validation
An attacker can cause a permanent denial-of-service condition in Lanner IAC-AST2500A devices via improper input validation in TLS certificate generation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-44769?
CVE-2021-44769 is a medium-severity denial of service vulnerability in Lanner Inc IAC-AST2500A, published on 24 Oct 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An improper input validation vulnerability in the TLS certificate generation function allows an attacker to cause a Denial-of-Service (DoS) condition which can only be reverted via a factory reset. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Weakness: CWE-20
Which versions are affected by CVE-2021-44769?
It affects 1 product.
Products include Lannerinc Iac-Ast2500a Firmware.
How do I fix CVE-2021-44769?
No fix has been published for CVE-2021-44769 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-44769 being exploited?
There is no known exploitation of CVE-2021-44769 in the wild and no public exploit code.
Other vulnerabilities in Lanner Inc IAC-AST2500A
- CVE-2021-26727 spx_restservice SubNet_handler_func Multiple Command Injections and Stack-Based Buffer Overflows
- CVE-2021-26728 spx_restservice KillDupUsr_func Command Injection and Stack-Based Buffer Overflow
- CVE-2021-26729 spx_restservice Login_handler_func Command Injection and Multiple Stack-Based Buffer Overflows
- CVE-2021-26730 spx_restservice Login_handler_func Subfunction Stack-Based Buffer Overflow
- CVE-2021-26731 spx_restservice modifyUserb_func Command Injection and Multiple Stack-Based Buffer Overflows
Sources
Also known as GHSA-x9p2-j848-3c98.