CVE-2023-20240
"Cisco Secure Client Out-of-Bounds Memory Read Denial of Service"
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.
INFO
Published Date :
Nov. 22, 2023, 5:15 p.m.
Last Modified :
Jan. 25, 2024, 5:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2023-20240
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-20240.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-accsc-dos-9SLzkZ8 | Issue Tracking Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-20240 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-20240 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jan. 25, 2024
Action Type Old Value New Value Added CWE Cisco Systems, Inc. CWE-125 -
Initial Analysis by [email protected]
Dec. 01, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-accsc-dos-9SLzkZ8 No Types Assigned https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-accsc-dos-9SLzkZ8 Issue Tracking, Vendor Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.00086:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.01095:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.02028:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.03047:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.03049:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.04043:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.04053:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.05042:*:*:*:*:*:*:* *cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.9.06037:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:cisco:secure_client:4.10.00093:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.01075:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.02086:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.03104:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.04065:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.04071:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.05085:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.05095:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.05111:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.06079:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.06090:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.07061:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.07062:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:4.10.07073:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:5.0.00238:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:5.0.00529:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:5.0.00556:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:5.0.01242:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:5.0.02075:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:5.0.03072:*:*:*:*:*:*:* *cpe:2.3:a:cisco:secure_client:5.0.03076:*:*:*:*:*:*:* -
CVE Received by [email protected]
Nov. 22, 2023
Action Type Old Value New Value Added 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. Added Reference Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-accsc-dos-9SLzkZ8 [No types assigned] Added CVSS V3.1 Cisco Systems, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-20240 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-20240
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05714
percentile