CVE-2023-20198

KEV
Published: Ott 16, 2023 Last Modified: Ott 28, 2025
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 10,0
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

Cisco is providing an update for the ongoing investigation into observed exploitation of the web UI feature in Cisco IOS XE Software. We are updating the list of fixed releases and adding the Software Checker. Our investigation has determined that the actors exploited two previously unknown issues. The attacker first exploited CVE-2023-20198 to gain initial access and issued a privilege 15 command to create a local user and password combination. This allowed the user to log in with normal user access. The attacker then exploited another component of the web UI feature, leveraging the new local user to elevate privilege to root and write the implant to the file system. Cisco has assigned CVE-2023-20273 to this issue. CVE-2023-20198 has been assigned a CVSS Score of 10.0. CVE-2023-20273 has been assigned a CVSS Score of 7.2. Both of these CVEs are being tracked by CSCwh87343.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,9401
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

420

Unprotected Alternate Channel

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
View CWE Details
Operating System

Ios Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version Range Affected
From 17.6 (inclusive)
To 17.6.6a (exclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version Range Affected
From 16.12 (inclusive)
To 16.12.10a (exclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Allen-Bradley Stratix 5800 Firmware by Rockwellautomation

Product Information
Vendor Rockwellautomation
Product Allen-Bradley Stratix 5800 Firmware
Version Range Affected
To 17.12.02 (exclusive)
cpe:2.3:o:rockwellautomation:allen-bradley_stratix_5800_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Allen-Bradley Stratix 5200 Firmware by Rockwellautomation

Product Information
Vendor Rockwellautomation
Product Allen-Bradley Stratix 5200 Firmware
Version Range Affected
To 17.12.02 (exclusive)
cpe:2.3:o:rockwellautomation:allen-bradley_stratix_5200_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version Range Affected
From 17.9 (inclusive)
To 17.9.4a (exclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version Range Affected
From 17.3 (inclusive)
To 17.3.8a (exclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023…
https://sec.cloudapps.cisco.com/security/center/content/Cis…
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…
https://sec.cloudapps.cisco.com/security/center/content/Cis…
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…