PT-2021-3320 · Cisco · Cisco Anyconnect Secure Mobility Client

Published 2021-06-16 · Updated 2021-06-23 · CVE-2021-1568

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco AnyConnect Secure Mobility Client for Windows (affected versions not specified)

Description A vulnerability in Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected system. This issue is due to uncontrolled memory allocation. An attacker could exploit this vulnerability by copying a crafted file to a specific folder on the system. A successful exploit could allow the attacker to crash the VPN Agent service when the affected application is launched, causing it to be unavailable to all users of the system. To exploit this vulnerability, the attacker must have valid credentials on a multiuser Windows system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-789

Related Identifiers

BDU:2021-03113

CVE-2021-1568

Affected Products

Cisco Anyconnect Secure Mobility Client

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dos-hMhyDfb8 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1568 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1568 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-03113 · Security Note
• https://t.me/cibsecurity/25501 · Telegram Post