CVE-2020-15933 : Security Advisory and Response
Learn about CVE-2020-15933, an information disclosure vulnerability in Fortinet FortiMail versions 6.0.9 and below, 6.2.4 and below, and 6.4.1 and 6.4.0. Understand the impact, affected systems, and mitigation steps.
A exposure of sensitive information to an unauthorized actor in Fortinet FortiMail versions 6.0.9 and below, FortiMail versions 6.2.4 and below FortiMail versions 6.4.1 and 6.4.0 allows attacker to obtain potentially sensitive software-version information via client-side resources inspection.
Understanding CVE-2020-15933
This CVE involves an information disclosure vulnerability in Fortinet FortiMail products.
What is CVE-2020-15933?
The vulnerability allows unauthorized actors to access sensitive software-version information through client-side resources inspection.
The Impact of CVE-2020-15933
- CVSS Base Score: 5.2 (Medium)
- Attack Vector: Network
- Attack Complexity: Low
- Confidentiality Impact: Low
- Integrity Impact: None
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:F/RL:X/RC:X
Technical Details of CVE-2020-15933
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The vulnerability exposes sensitive software-version information to unauthorized actors.
Affected Systems and Versions
- Affected Product: Fortinet FortiMail
- Affected Versions:
- FortiMail 6.4.1, 6.4.0
- FortiMail 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0
- FortiMail 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0
- More versions listed in the data
Exploitation Mechanism
The vulnerability can be exploited by attackers to gather sensitive software-version details through client-side resources inspection.
Mitigation and Prevention
Protecting systems from this vulnerability is crucial to maintaining security.
Immediate Steps to Take
- Update Fortinet FortiMail to the latest patched version.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Implement network segmentation to limit the impact of potential breaches.
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the risk of exploitation.