Cisco Identity Services Engine Authorization Bypass Vulnerabilities
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Multiple vulnerabilities in the web-based management interface of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device. These vulnerabilities are due to the lack of server-side validation of Administrator permissions. An attacker could exploit these vulnerabilities by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on specific pages. To exploit these vulnerabilities, an attacker would need valid Administrator credentials. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-1-MxcTNgwx This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories. In addition, for further documentation of improvements and fixes in Cisco Identity Services Engine, see Cisco Identity Services Engine Security Hardening Release: September 2026. Security Impact Rating: Medium CVE: CVE-2026-20183,CVE-2026-20285,...
Entenda a falha
A vulnerabilidade
CVE-2026-20183, CVE-2026-20285 and CVE-2026-20286 are authorization bypass flaws in the web-based management interface of Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC). An attacker needs network reach to the interface and valid Administrator credentials, and can then change parts of the configuration, specifically the descriptions of files on certain pages. Cisco rates the impact Medium. The articles do not list affected or fixed versions; Cisco says software updates are available and there are no workarounds.
Como funciona
An administrator-level user sends an HTTP request to the ISE web management interface. The server receives the request and applies the change to the configuration, in this case the description of files on specific pages. The problem arises at the step where the server should confirm that the account actually holds the Administrator permission needed for that action, since that check is not done on the server side.
Por que é vulnerável
The root cause is the lack of server-side validation of Administrator permissions in the management interface. The articles do not say why it went unnoticed or describe the code change in the fix, only that Cisco released software updates.
Como foi descoberta
The articles do not say who found the flaws or how. They only state that Cisco published the advisory cisco-sa-ise-auth-bypass-1-MxcTNgwx, part of a group of advisories tied to a Cisco Advance Notification and the Cisco ISE Security Hardening Release of September 2026.
Explicação gerada por IA a partir da matéria e dos artigos, em 10/11/2026 21:15.
Linha do tempo
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sec.cloudapps.cisco.com ↗ · pub. 10/11/2026 19:37 · coletado 10/11 21:00 primeiro registro só resumo do feed
Cisco Identity Services Engine Authorization Bypass Vulnerabilities
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Multiple vulnerabilities in the web-based management interface of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device. These vulnerabilities are due to the lack of server-side validation of Administrator permissions. An attacker could exploit these vulnerabilities by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on specific pages. To exploit these vulnerabilities, an attacker would need valid Administrator credentials. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-1-MxcTNgwx This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories. In addition, for further documentation of improvements and fixes in Cisco Identity Services Engine, see Cisco Identity Services Engine Security Hardening Release: September 2026. Security Impact Rating: Medium CVE: CVE-2026-20183,CVE-2026-20285,...