CVE-2023-20198
Cisco Cisco IOS XE Software
At a glance
- Source
- NVD
- EPSS
- EPSS 99.61 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
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.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | cisco |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2023-24377
- GCVE · GCVE-0-2023-20198
CERT-FR advisories
- CERTFR-2023-AVI-0878 — Multiples vulnérabilités dans Cisco IOS XE · cert.ssi.gouv.fr
- CERTFR-2023-ALE-011 — [MàJ] Multiples vulnérabilités dans Cisco IOS XE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:rockwellautomation:allen-bradley_stratix_5200_firmware:*:*:*:*:*:*:*:*< 17.12.02cpe:2.3:o:rockwellautomation:allen-bradley_stratix_5800_firmware:*:*:*:*:*:*:*:*< 17.12.02cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*≥ 16.12 < 16.12.10acpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*≥ 17.3 < 17.3.8acpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*≥ 17.6 < 17.6.6acpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*≥ 17.9 < 17.9.4a
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco IOS XE Software | affected 16.1.1 ; affected 16.1.2 ; affected 16.1.3 ; affected 16.2.1 ; affected 16.2.2 ; affected 16.3.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |