CVE-2018-25016

Greenbone Security Assistant (GSA) before 7.0.3 and Greenbone OS (GOS) before 5.0.0 allow Host Header Injection

published June 21, 2021

CVSS
—
EPSS
1%
Percentile
69.7
In the wild
Unconfirmed
What it is

⚠️ A sneaky host header injection could allow attackers to redirect requests. Just like a faulty GPS sending you to the wrong address, this could lead unwitting users astray! Think of your web requests as letters delivered to specific addresses. If someone replaces the address on your letter without you knowing, your important message could end up in the wrong hands or worse, lead to a phishing attack! An attacker could exploit this vulnerability to manipulate the host header, potentially leading to unauthorized actions like session hijacking or redirecting users to malicious sites. This could compromise user data and trust, creating a chaotic situation for web applications and their users.

Put simply

Think of your web requests as letters delivered to specific addresses. If someone replaces the address on your letter without you knowing, your important message could end up in the wrong hands or worse, lead to a phishing attack! This host header injection vulnerability affects Greenbone Security Assistant versions before 7.0.3 and Greenbone OS versions before 5.0.0, allowing attackers to spoof the host header and manipulate web traffic accordingly.

What to do

An attacker could exploit this vulnerability to manipulate the host header, potentially leading to unauthorized actions like session hijacking or redirecting users to malicious sites. This could compromise user data and trust, creating a chaotic situation for web applications and their users. To protect against this vulnerability, upgrade to Greenbone Security Assistant 7.0.3 or later and Greenbone OS 5.0.0 or later. Additionally, ensure that your web applications validate and sanitize host headers properly to prevent such manipulations. You've got this! With these updates, your systems will be fortified against sneaky attacks. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01276 · 69.7th percentile
Published
2021-06-21T14:08Z
EPSS history
Timeline
  • 21 JUN 14:08Z
    Greenbone Security Assistant (GSA) before 7.0.3 and Greenbone OS (GOS) before 5.0.0 allow Host Header Injection
    cvelistv5