CVE-2024-20531: identity services XXE — Fix

Description

A vulnerability in the API of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files on the underlying operating system of an affected device and conduct a server-side request forgery (SSRF) attack through an affected device. To exploit this vulnerability, the attacker would need valid Super Admin credentials. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing XML input. An attacker could exploit this vulnerability by sending a crafted API request to an affected device. A successful exploit could allow the attacker to read arbitrary files on the underlying operating system or conduct an SSRF attack through the affected device.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-611 CWE-611

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Vendor	Product	Versions
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All
cisco	identity_services_engine	All

References

Advisories & Patches

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-vuln-DBQdWRy

Frequently Asked Questions

What is CVE-2024-20531? +

A vulnerability in the API of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files on the underlying operating system of an affected device and conduct a server-side request forgery (SSRF) attack through an affected device. To exploit this vulnerability, the attacker would need valid Super Admin credentials. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing XML input. An attacker could exploit this vulnerability by sending a crafted API request to an affected device. A successful exploit could allow the attacker to read arbitrary files on the underlying operating system or conduct an SSRF attack through the affected device. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-20531? +

CVE-2024-20531 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-20531? +

CVE-2024-20531 affects products from cisco, specifically: identity_services_engine. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-20531? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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