CVE-2023-20198

criticalPriorität · handeln · 90OT-Risiko · kritischKEV · ausgenutztEPSS 0.996 · 100. PerzentilExploit · waffenfähigDEEURUUS
grimoire priorityP0 · Act now
Exploitable?
Yes · in the wild
CISA KEV · 39 exploits · waffenfähig
Likely / severe?
99.6% (100th) EPSS
CVSS 10 · critical
Is it mine?
406 products
Prüfe deine Angriffsfläche
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

hinzugefügt 2023-10-16beheben bis 2023-10-20

erforderliche Maßnahme Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and immediately report positive findings to CISA.

EPSS · bewertet 2026-10-24

Cisco IOS XE Web UI Privilege Escalation Vulnerability

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.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

10.0
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 6
v3.010criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · CISA US
v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 6
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · Cisco PSIRT US
03

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
04

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-269USCWE-420USCWE-420US
05

ATT&CK-Techniken

ATT&CK-Techniken, die dies ermöglicht oder abbildet.

06

Exploits (39)

Öffentlicher Proof-of-Concept- und Exploit-Code.

07

betroffene Produkte (406)

Betroffene Produkte und Versionsbereiche.

20 von 406 angezeigt
08

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

  • WID-SEC-W-2023-2658Cisco IOS XE: Schwachstellen ermöglichten Administrativen ZugriffDeutsch2023-10-16csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Cisco IOS XE ausnutzen, um Administrativen Zugriff zu erlangen.

  • cisco-sa-iosxe-webui-privesc-j22SaA4zMultiple Vulnerabilities in Cisco IOS XE Software Web UI Feature2023-10-16csaf · cisco_csafUS

    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. Fix information can be found in the Fixed Software ["#fs"] section of this advisory. 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 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwh87343"]. For steps to close the attack vector for these vulnerabilities, see the Recommendations ["#REC"] section of this advisory.

  • ICSA-23-297-01Rockwell Automation Stratix 5800 and Stratix 5200 (UPDATE A)2023-10-24icsa · cisa_csaf_otUS

    Successful exploitation of this vulnerability could allow an unauthenticated attacker to take control of the affected system.

09

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

10

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otcisco_csafNVDCVE.orgMITRE
veröffentlicht 2023-10-16geändert 2026-06-17
11

Referenzen (11)

Externe Belege — Patches, Meldungen, Analysen.

scry

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