Stack-based Buffer Overflow in Fortinet's FortiOS and FortiProxy Service
CVE-2019-17656

5.4MEDIUM

Key Information:

Vendor

Fortinet
Status
Fortinet Fortiproxy, FortiOS
Vendor
CVE Published:
12 April 2021

What is CVE-2019-17656?

A Stack-based Buffer Overflow vulnerability exists in the HTTPD daemon of Fortinet products including FortiOS and FortiProxy, specifically affecting versions 6.0.10 and below, 6.2.2 and below for FortiOS, and multiple versions of FortiProxy. This vulnerability allows an authenticated remote attacker to potentially crash the service by sending a specially crafted malformed PUT request. While Fortinet has not confirmed any successful exploitation leading to code execution, the threat remains significant for affected users and organizations relying on these services.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Fortinet FortiProxy, FortiOS FortiProxy 1.0.x, 1.1.x, 1.2.9 and below, 2.0.0 and below; FortiOS 6.0.10 and below, 6.2.2 and below

References

https://fortiguard.com/advisory/FG-IR-19-248
x_refsource_CONFIRM
https://fortiguard.com/advisory/FG-IR-21-007
x_refsource_CONFIRM

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.