Cisco IOS XE up to 17.13.1a ACL authorization

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cisco IOS XE. Affected by this vulnerability is an unknown functionality of the component ACL. Performing a manipulation results in authorization. This vulnerability is reported as CVE-2024-20510. The attacker must have access to the local network to execute the attack. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco IOS XE. This affects some unknown processing of the component ACL. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. This is going to have an impact on integrity. The summary by CVE is:

A vulnerability in the Central Web Authentication (CWA) feature of Cisco IOS XE Software for Wireless Controllers could allow an unauthenticated, adjacent attacker to bypass the pre-authentication access control list (ACL), which could allow access to network resources before user authentication. This vulnerability is due to a logic error when activating the pre-authentication ACL that is received from the authentication, authorization, and accounting (AAA) server. An attacker could exploit this vulnerability by connecting to a wireless network that is configured for CWA and sending traffic through an affected device that should be denied by the configured ACL before user authentication. A successful exploit could allow the attacker to bypass configured ACL protections on the affected device before the user authentication is completed, allowing the attacker to access trusted networks that the device might be protecting.

It is possible to read the advisory at sec.cloudapps.cisco.com. This vulnerability is uniquely identified as CVE-2024-20510 since 11/08/2023. The exploitability is told to be easy. Access to the local network is required for this attack to succeed. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/04/2024).

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.3
NVD Vector: 🔍

CNA Base Score: 4.7
CNA Vector (cisco): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/08/2023 🔍
09/25/2024 +321 days 🔍
09/25/2024 +0 days 🔍
10/04/2024 +9 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-c9800-cwa-acl-nPSbHSnA
Status: Confirmed

CVE: CVE-2024-20510 (🔍)
GCVE (CVE): GCVE-0-2024-20510
GCVE (VulDB): GCVE-100-278487
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/25/2024 18:45
Updated: 10/04/2024 02:32
Changes: 09/25/2024 18:45 (64), 10/04/2024 02:32 (12)
Complete: 🔍
Cache ID: 216::103

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