CVE-2023-21242

In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code

published August 14, 2023

CVSS
โ€”
EPSS
1%
Percentile
44.2
In the wild
Unconfirmed
What it is

๐Ÿšจ A sneaky logic flaw in the InsecureEapNetworkHandler could trick your system into trusting an imposter server! ๐Ÿ”ฅ Think of it like a bouncer at a club who lets in someone without checking their ID โ€” that 'guest' could throw the whole party into chaos! If exploited, an attacker could gain remote privileges, opening the door to unauthorized access and potential data breaches without needing to break a sweat or interact with users. That's pretty alarming, right?

Put simply

Think of it like a bouncer at a club who lets in someone without checking their ID โ€” that 'guest' could throw the whole party into chaos! The issue arises in the isServerCertChainValid function, where a logic error allows the system to mistakenly trust a fraudulent server's certificate chain, leading to possible privilege escalation.

What to do

If exploited, an attacker could gain remote privileges, opening the door to unauthorized access and potential data breaches without needing to break a sweat or interact with users. That's pretty alarming, right? To secure your systems, review and patch the logic in the InsecureEapNetworkHandler class. Additionally, ensure that server certificate validation processes are robust and do not rely on flawed logic. Regularly audit your code for similar vulnerabilities. You've got this! Follow these steps, and you'll be one step closer to locking things down tight! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00532 ยท 44.2th percentile
Published
2023-08-14T20:58Z
EPSS history
Timeline
  • 14 AUG 20:58Z
    In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code
    cvelistv5