CVE-2021-42128 Privilege escalation in Ivanti Avalanche

Critical 9.8 Published 7 Dec 2021 Updated 4 Aug 2024

An exposed dangerous function in Ivanti Avalanche allows attackers to escalate privileges via the Enterprise Server Service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-42128?

CVE-2021-42128 is a critical vulnerability in Ivanti Avalanche, published on 7 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An exposed dangerous function vulnerability exists in Ivanti Avalanche before 6.3.3 using inforail Service allows Privilege Escalation via Enterprise Server Service.

Weakness: CWE-749

Which versions are affected by CVE-2021-42128?

It affects 1 product.

Products include Ivanti Avalanche.

How do I fix CVE-2021-42128?

No fix has been published for CVE-2021-42128 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-42128 being exploited?

There is no known exploitation of CVE-2021-42128 in the wild and no public exploit code.

All Ivanti Avalanche vulnerabilities

Sources

Also known as GHSA-mfmh-5798-r2wm.