CVE-2018-16495 Auth bypass in Versa VOS
Attackers can hijack user sessions by fixing session IDs before login, leading to account takeover in Versa VOS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-16495?
CVE-2018-16495 is a high-severity authentication bypass vulnerability in Versa VOS, published on 26 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-384
Which versions are affected by CVE-2018-16495?
It affects 1 product.
Products include Versa-Networks Versa Operating System.
How do I fix CVE-2018-16495?
No fix has been published for CVE-2018-16495 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2018-16495 being exploited?
There is no known exploitation of CVE-2018-16495 in the wild and no public exploit code.
Other vulnerabilities in Versa VOS
Sources
Also known as GHSA-gvq8-8f97-wwvq.