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CVE-2024-20398

HIGHCVSS 7.8/10EPSS 0.21%

Last modified

CVE-2024-20398 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to obtain read/write file system access on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the prompt. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to obtain read/write file system access on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the prompt. A successful exploit could allow the attacker to elevate privileges to root.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.21%

11.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos Xr6.5.1
CiscoIos Xr6.5.2
CiscoIos Xr6.5.3
CiscoIos Xr6.5.15
CiscoIos Xr6.5.25
CiscoIos Xr6.5.26
CiscoIos Xr6.5.28
CiscoIos Xr6.5.29
CiscoIos Xr6.5.31
CiscoIos Xr6.5.32
CiscoIos Xr6.5.33
CiscoIos Xr6.5.90
CiscoIos Xr6.5.92
CiscoIos Xr6.5.93
CiscoIos Xr6.6.1
CiscoIos Xr6.6.2
CiscoIos Xr6.6.3
CiscoIos Xr6.6.4
CiscoIos Xr6.6.11
CiscoIos Xr6.6.12
CiscoIos Xr6.6.25
CiscoIos Xr7.0.0
CiscoIos Xr7.0.1
CiscoIos Xr7.0.2
CiscoIos Xr7.0.11
CiscoIos Xr7.0.12
CiscoIos Xr7.0.14
CiscoIos Xr7.0.90
CiscoIos Xr7.1.1
CiscoIos Xr7.1.2
CiscoIos Xr7.1.3
CiscoIos Xr7.1.15
CiscoIos Xr7.1.25
CiscoIos Xr7.2.0
CiscoIos Xr7.2.1
CiscoIos Xr7.2.2
CiscoIos Xr7.2.12
CiscoIos Xr7.3.1
CiscoIos Xr7.3.2
CiscoIos Xr7.3.3
CiscoIos Xr7.3.4
CiscoIos Xr7.3.5
CiscoIos Xr7.3.6
CiscoIos Xr7.3.15
CiscoIos Xr7.3.16
CiscoIos Xr7.3.27
CiscoIos Xr7.4.1
CiscoIos Xr7.4.2
CiscoIos Xr7.4.15
CiscoIos Xr7.4.16

Showing 50 of 76 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20398?
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to obtain read/write file system access on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the prompt. A successful exploit could allow the attacker to elevate privileges to root.
How severe is CVE-2024-20398?
CVE-2024-20398 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20398?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-20398?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST