PT-2023-7118 · Cisco · Cisco Secure Client

Published 2023-11-15 · Updated 2024-01-25 · CVE-2023-20240

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 Secure Client Software (affected versions not specified)

Description The issue is related to multiple vulnerabilities in Cisco Secure Client Software that 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.

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

Out of bounds Read

Improper Resource Release

Weakness Enumeration

CWE-125

CWE-404

Related Identifiers

BDU:2023-08145

CVE-2023-20240

Affected Products

Cisco Secure Client

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2023-20240 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-accsc-dos-9SLzkZ8 · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-accsc-dos-9SLzkZ8? · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-08145 · Security Note
• https://osv.dev/vulnerability/CVE-2023-20240 · Vendor Advisory
• https://t.me/cvenotify/61879 · Telegram Post
• https://github.com/advisories/GHSA-qwhq-2jqj-q642 · Note
• https://vuldb.com/ru/?id.245520 · Note