Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rockwellautomation | Allen-Bradley Stratix 5200 Firmware | < 17.12.02 |
| Rockwellautomation | Allen-Bradley Stratix 5200 | - |
| Rockwellautomation | Allen-Bradley Stratix 5800 Firmware | < 17.12.02 |
| Rockwellautomation | Allen-Bradley Stratix 5800 | - |
| Cisco | Ios Xe | >= 16.12, < 16.12.10a |
Related Weaknesses (CWE)
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ciMitigationVendor Advisory
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ciMitigationVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-US Government Resource
FAQ
What is CVE-2023-20198?
CVE-2023-20198 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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...
How severe is CVE-2023-20198?
CVE-2023-20198 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2023-20198?
Check the references section above for vendor advisories and patch information. Affected products include: Rockwellautomation Allen-Bradley Stratix 5200 Firmware, Rockwellautomation Allen-Bradley Stratix 5200, Rockwellautomation Allen-Bradley Stratix 5800 Firmware, Rockwellautomation Allen-Bradley Stratix 5800, Cisco Ios Xe.