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CVE-2023-20198

is CVE-2023-20198real, exploitable, or a false positive? Here's the community ground truth.

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Critical · CVSS 10EPSS 99.6%CISA KEVCWE-420

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

References

NVD MITRE CVE.org CISA KEV

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TruePositive verdict for CVE-2023-20198
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Community ground truth

Community verdict

2 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 2) — CVSS base score 10

In line with its CVSS base score.

Field notes & remediation

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    Related CVEs

    Same weakness — CWE-420.