Cisco Identity Services Engine Software API deserialization

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7.6	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Cisco Identity Services Engine Software and ISE Passive Identity Connector. This issue affects some unknown processing of the component API. The manipulation results in deserialization. This vulnerability was named CVE-2025-20124. The attack may be performed from remote. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco Identity Services Engine Software and ISE Passive Identity Connector (the affected version unknown). It has been classified as critical. Affected is an unknown part of the component API. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in an API of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands as the root user on an affected device. This vulnerability is due to insecure deserialization of user-supplied Java byte streams by the affected software. An attacker could exploit this vulnerability by sending a crafted serialized Java object to an affected API. A successful exploit could allow the attacker to execute arbitrary commands on the device and elevate privileges. Note: To successfully exploit this vulnerability, the attacker must have valid read-only administrative credentials. In a single-node deployment, new devices will not be able to authenticate during the reload time.

The advisory is available at sec.cloudapps.cisco.com. This vulnerability is traded as CVE-2025-20124 since 10/10/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 216074 (Cisco Identity Services Engine Insecure Java Deserialization and Authorization Bypass Vulnerabilities (cisco-sa-ise-multivuls-FTW9AOXF)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (52396) and Tenable (216074). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Policy Management Software

Vendor

Cisco

Name

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 9.9
CNA Vector (cisco): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 216074
Nessus Name: Cisco Identity Services Engine Insecure Java Deserialization and Authorization Bypass Vulnerabilities (cisco-sa-ise-multivuls-FTW9AOXF)

Exploit-DB: 🔍