CVE-2019-17240

bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or…

Low · published October 6, 2019

CVSS v3.0
3.7
EPSS
40%
Percentile
98.6
In the wild
Unconfirmed
What it is

⚠️ A crafty array of forged headers can slip past Bludit's brute-force defenses! This vulnerability opens a sneaky backdoor for attackers to exploit. 🔍 Think of it like a restaurant security system that only checks ID for the first few tables—if someone changes their hat and moves to another table, they can order freely without being recognized! An attacker could bombard the system with login attempts using a mix of fake IP addresses, slowly chipping away at security. While this doesn’t guarantee full access, it raises the risk of a successful brute-force attack, potentially compromising sensitive data.

Put simply

Think of it like a restaurant security system that only checks ID for the first few tables—if someone changes their hat and moves to another table, they can order freely without being recognized! This vulnerability in Bludit 3.9.2 allows attackers to bypass brute-force protection by manipulating the X-Forwarded-For or Client-IP headers, making it easier for them to brute-force passwords without triggering security mechanisms.

What to do

An attacker could bombard the system with login attempts using a mix of fake IP addresses, slowly chipping away at security. While this doesn’t guarantee full access, it raises the risk of a successful brute-force attack, potentially compromising sensitive data. To safeguard your Bludit installation, update to the latest version where this issue has been addressed. Additionally, consider implementing rate limiting and other protective measures to strengthen your defenses against brute-force attacks. 🛡️ You've got this! By following these steps, you'll make your Bludit site much more secure in no time! 💪

The record
Technical detail
CVSS v3.0
3.7 · LOW
Vector
CVSS:3.0/AC:H/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N
CVSS v4.0
Not supplied
EPSS
0.39598 · 98.6th percentile
Published
2019-10-06T18:32Z
EPSS history
Timeline
  • 06 OCT 18:32Z
    bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or…
    cvelistv5