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

CVE-2023-20241

Disclosure Date: November 22, 2023
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Multiple vulnerabilities in Cisco Secure Client Software, formerly AnyConnect Secure Mobility Client, could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected system.

These vulnerabilities are due to an out-of-bounds memory read from Cisco Secure Client Software. An attacker could exploit these vulnerabilities by logging in to an affected device at the same time that another user is accessing Cisco Secure Client on the same system, and then sending crafted packets to a port on that local host. A successful exploit could allow the attacker to crash the VPN Agent service, causing it to be unavailable to all users of the system. To exploit these vulnerabilities, the attacker must have valid credentials on a multi-user system.

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CVSS V3 Severity and Metrics
Base Score:
5.5 Medium
Impact Score:
3.6
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • cisco

Products

  • anyconnect secure mobility client 4.9.00086,
  • anyconnect secure mobility client 4.9.01095,
  • anyconnect secure mobility client 4.9.02028,
  • anyconnect secure mobility client 4.9.03047,
  • anyconnect secure mobility client 4.9.03049,
  • anyconnect secure mobility client 4.9.04043,
  • anyconnect secure mobility client 4.9.04053,
  • anyconnect secure mobility client 4.9.05042,
  • anyconnect secure mobility client 4.9.06037,
  • secure client 4.10.00093,
  • secure client 4.10.01075,
  • secure client 4.10.02086,
  • secure client 4.10.03104,
  • secure client 4.10.04065,
  • secure client 4.10.04071,
  • secure client 4.10.05085,
  • secure client 4.10.05095,
  • secure client 4.10.05111,
  • secure client 4.10.06079,
  • secure client 4.10.06090,
  • secure client 4.10.07061,
  • secure client 4.10.07062,
  • secure client 4.10.07073,
  • secure client 5.0.00238,
  • secure client 5.0.00529,
  • secure client 5.0.00556,
  • secure client 5.0.01242,
  • secure client 5.0.02075,
  • secure client 5.0.03072,
  • secure client 5.0.03076

Additional Info

Technical Analysis