8.8
CWE
384
Advisory Published
Updated

CVE-2018-16495

First published: Wed May 26 2021(Updated: )

In VOS user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after the user successfully logs into the application. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with.

Credit: support@hackerone.com

Affected SoftwareAffected VersionHow to fix
Versa Networks Versa Operating System<16.1r2s11
Versa Networks Versa Operating System>=20.2.0<20.2.2
Versa Networks Versa Operating System>=21.1.0<21.1.1

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Frequently Asked Questions

  • What is the severity of CVE-2018-16495?

    CVE-2018-16495 is classified as a high severity vulnerability due to the potential for session hijacking.

  • How do I fix CVE-2018-16495?

    To address CVE-2018-16495, ensure that a new session identifier is issued after user authentication.

  • What type of attacks can CVE-2018-16495 enable?

    CVE-2018-16495 can enable session fixation attacks, allowing an attacker to impersonate a legitimate user.

  • Which software is affected by CVE-2018-16495?

    CVE-2018-16495 affects multiple versions of Versa Networks Versa Operating System up to 20.2.2 and specific 21.1.x versions.

  • Is CVE-2018-16495 reversible once exploited?

    Once exploited, the effects of CVE-2018-16495 may not be easily reversible without user intervention or re-authentication.

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