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CVE-2018-16495

HIGHCVSS 8.8/10EPSS 0.91%

Last modified

CVE-2018-16495 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
0.91%

55.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Versa-NetworksVersa Operating System< 16.1r2s11
Versa-NetworksVersa Operating System>= 20.2.0, < 20.2.2
Versa-NetworksVersa Operating System>= 21.1.0, < 21.1.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-16495?
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.
How severe is CVE-2018-16495?
CVE-2018-16495 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.
How do I fix CVE-2018-16495?
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-2018-16495?

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

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Source: NVD / NIST