CVE-2020-1722 Denial of service in ipa
Attackers can cause denial of service in Identity Policy Audit servers by sending excessively long passwords, exhausting system resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-1722?
CVE-2020-1722 is a medium-severity denial of service vulnerability in Redhat Enterprise Linux, published on 27 Apr 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A flaw was found in all ipa versions 4.x.x through 4.8.0. When sending a very long password (>= 1,000,000 characters) to the server, the password hashing process could exhaust memory and CPU leading to a denial of service and the website becoming unresponsive. The highest threat from this vulnerability is to system availability.
Weakness: CWE-400
Which versions are affected by CVE-2020-1722?
It affects 2 products.
Products include Freeipa Freeipa, Redhat Enterprise Linux.
How do I fix CVE-2020-1722?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-1722 being exploited?
There is no known exploitation of CVE-2020-1722 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
- CVE-2015-5284 Information disclosure in n/a
- CVE-2026-11861 Freeipa: idm: ipa: freeipa: obtaining tgs with impersonating cname through trust relationships
- CVE-2024-2698 Freeipa: delegation rules allow a proxy service to impersonate any user to access another target service
- CVE-2012-5631 Information disclosure in ipa
- CVE-2017-11191 Security feature bypass in n/a
Sources
Also known as DEBIAN-CVE-2020-1722, GHSA-mvj3-pw74-8w47, UBUNTU-CVE-2020-1722.