Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
High
Attack Vector
Local
0

CVE-2021-42757

Disclosure Date: December 08, 2021
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.

Add Assessment

No one has assessed this topic. Be the first to add your voice to the community.

CVSS V3 Severity and Metrics
Base Score:
6.7 Medium
Impact Score:
5.9
Exploitability Score:
0.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • fortinet

Products

  • fortiadc,
  • fortianalyzer,
  • fortimail,
  • fortimanager,
  • fortindr,
  • fortios,
  • fortios-6k7k,
  • fortios-6k7k 6.4.2,
  • fortios-6k7k 6.4.6,
  • fortiportal,
  • fortiproxy,
  • fortiproxy 7.0.0,
  • fortiproxy 7.0.1,
  • fortirecorder firmware,
  • fortiswitch,
  • fortivoice,
  • fortiweb,
  • fortiweb 6.4.0,
  • fortiweb 6.4.1

Additional Info

Technical Analysis