CWE
61
Advisory Published

cisco-sa-staros-file-read-L3RDvtey: Cisco StarOS for Cisco ASR 5000 Series Routers Arbitrary File Read Vulnerability

First published: Wed Jan 13 2021(Updated: )

A vulnerability in the Secure FTP (SFTP) of Cisco StarOS for Cisco ASR 5000 Series Routers could allow an authenticated, remote attacker to read arbitrary files on an affected device. To exploit this vulnerability, the attacker would need to have valid credentials on the affected device. The vulnerability is due to insecure handling of symbolic links. An attacker could exploit this vulnerability by sending a crafted SFTP command to an affected device. A successful exploit could allow the attacker to read arbitrary files on the affected device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-file-read-L3RDvtey

Affected SoftwareAffected VersionHow to fix
Cisco StarOS Major

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of cisco-sa-staros-file-read-L3RDvtey?

    The severity of cisco-sa-staros-file-read-L3RDvtey is considered high due to the potential for arbitrary file reading by an authenticated attacker.

  • How do I fix cisco-sa-staros-file-read-L3RDvtey?

    To fix cisco-sa-staros-file-read-L3RDvtey, upgrade to the latest version of Cisco StarOS that addresses this vulnerability.

  • Who is affected by cisco-sa-staros-file-read-L3RDvtey?

    The vulnerability cisco-sa-staros-file-read-L3RDvtey affects Cisco ASR 5000 Series Routers running Cisco StarOS.

  • What type of attack does cisco-sa-staros-file-read-L3RDvtey enable?

    cisco-sa-staros-file-read-L3RDvtey enables authenticated remote attackers to read arbitrary files on affected Cisco devices.

  • Is authentication required to exploit cisco-sa-staros-file-read-L3RDvtey?

    Yes, an attacker must have valid credentials to exploit the vulnerability described in cisco-sa-staros-file-read-L3RDvtey.

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