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CVE-2023-20154

Cisco Modeling Labs vulnerability

9.1 CRITICALEPSS 0.91%
  1. Published15 Nov 2024

Description

A vulnerability in the external authentication mechanism of Cisco Modeling Labs could allow an unauthenticated, remote attacker to access the web interface with administrative privileges. This vulnerability is due to the improper handling of certain messages that are returned by the associated external authentication server. An attacker could exploit this vulnerability by logging in to the web interface of an affected server. Under certain conditions, the authentication mechanism would be bypassed and the attacker would be logged in as an administrator. A successful exploit could allow the attacker to obtain administrative privileges on the web interface of an affected server, including the ability to access and modify every simulation and all user-created data. To exploit this vulnerability, the attacker would need valid user credentials that are stored on the associated external authentication server. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Cisco Modeling Labs≥ 2.3 < 2.5.1

Remediation

Fixed in
Cisco Modeling Labs≥ 2.5.1

References

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Frequently asked

Is CVE-2023-20154 being actively exploited?

CVE-2023-20154 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.91%.

How severe is CVE-2023-20154?

CVE-2023-20154 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.91% probability of exploitation.

Which products are affected by CVE-2023-20154?

Affected products include Cisco Modeling Labs.

How do I fix CVE-2023-20154?

Upgrade affected software to a fixed version, for example Cisco Modeling Labs 2.5.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-20154 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.