PT-2020-6794 · Fortinet · Fortiproxy+1
Published
2020-10-01
·
Updated
2021-04-19
·
CVE-2019-17656
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
FortiOS versions 6.0.10 and below
FortiOS versions 6.2.2 and below
FortiProxy versions 1.0.x
FortiProxy versions 1.1.x
FortiProxy versions 1.2.9 and below
FortiProxy versions 2.0.0 and below
Description
A Stack-based Buffer Overflow vulnerability in the HTTPD daemon may allow an authenticated remote attacker to crash the service by sending a malformed PUT request to the server. The vulnerability is related to writing data beyond the buffer in memory. Fortinet is not aware of any successful exploitation of this vulnerability that would lead to code execution.
Recommendations
For FortiOS versions 6.0.10 and below, update to a version above 6.0.10 to resolve the issue.
For FortiOS versions 6.2.2 and below, update to a version above 6.2.2 to resolve the issue.
For FortiProxy versions 1.0.x, 1.1.x, 1.2.9 and below, and 2.0.0 and below, consider disabling the HTTPD daemon or restricting access to it until a patch is available.
As a temporary workaround, consider restricting the use of the
PUT request in the affected API endpoint until the issue is resolved.Fix
Memory Corruption
Stack Overflow
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Related Identifiers
Affected Products
Fortios
Fortiproxy