CWE
347 362
Advisory Published

cisco-sa-lnt-L9zOkBz5: Cisco IOS XR Software Image Verification Vulnerability

First published: Wed Sep 13 2023(Updated: )

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system.This vulnerability is due to a time-of-check, time-of-use (TOCTOU) race condition when an install query

Affected SoftwareAffected VersionHow to fix
Cisco IOS XRv 9000

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of cisco-sa-lnt-L9zOkBz5?

    The cisco-sa-lnt-L9zOkBz5 vulnerability is considered high severity due to its potential for arbitrary code execution.

  • How do I fix cisco-sa-lnt-L9zOkBz5?

    To remediate cisco-sa-lnt-L9zOkBz5, ensure that your Cisco IOS XR Software is updated to the latest patched version.

  • Who is affected by cisco-sa-lnt-L9zOkBz5?

    The cisco-sa-lnt-L9zOkBz5 vulnerability affects devices running affected Cisco IOS XR Software versions.

  • What type of attack does cisco-sa-lnt-L9zOkBz5 relate to?

    cisco-sa-lnt-L9zOkBz5 relates to local authenticated attackers exploiting a TOCTOU race condition.

  • Is user interaction required for cisco-sa-lnt-L9zOkBz5 to be exploited?

    User interaction is not required for cisco-sa-lnt-L9zOkBz5 to be exploited, as it targets authenticated local access.

Contact

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