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CVE-2023-20194

A vulnerability in the ERS API of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files on the underlying…

Medium4.9EPSS 0.72%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in the ERS API of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files on the underlying operating system of an affected device. To exploit this vulnerability, an attacker must have valid Administrator-level privileges on the affected device. This vulnerability is due to improper privilege management in the ERS API. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to elevate their privileges beyond the sphere of their intended access level, which would allow them to obtain sensitive information from the underlying operating system. Note: The ERS is not enabled by default. To verify the status of the ERS API in the Admin GUI, choose Administration > Settings > API Settings > API Service Settings.

Scores

CVSS scores of CVE-2023-20194, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1Medium4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Modified3.1Medium4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.72% · top 46% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.

Weakness

Affected products

  • Cisco · Cisco Identity Services Engine Software

    • affected 2.6.0
    • affected 2.6.0 p1
    • affected 2.6.0 p2
    • affected 2.6.0 p3
    • affected 2.6.0 p5
    • affected 2.6.0 p6
    • affected 2.6.0 p7
    • affected 2.6.0 p8
    • affected 2.6.0 p9
    • affected 2.6.0 p10
    • affected 2.6.0 p11
    • affected 2.6.0 p12
    • affected 2.7.0
    • affected 2.7.0 p1
    • affected 2.7.0 p2
    • affected 2.7.0 p3
    • affected 2.7.0 p4
    • affected 2.7.0 p5
    • affected 2.7.0 p6
    • affected 2.7.0 p7
    • affected 2.7.0 p9
    • affected 3.0.0
    • affected 3.0.0 p1
    • affected 3.0.0 p2
    • affected 3.0.0 p3
    • affected 3.0.0 p4
    • affected 3.0.0 p5
    • affected 3.0.0 p6
    • affected 3.0.0 p7
    • affected 3.1.0
    • affected 3.1.0 p1
    • affected 3.1.0 p3
    • affected 3.1.0 p4
    • affected 3.1.0 p5
    • affected 3.1.0 p6
    • affected 3.1.0 p7
    • affected 3.2.0
    • affected 3.2.0 p1
    • affected 3.2.0 p2

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2023-20194 badge
[![CVE-2023-20194](https://trackcve.app/badge/CVE-2023-20194.svg)](https://trackcve.app/cve/CVE-2023-20194)

Record last updated .