CVE-2020-1722Network attack vector

Service interruption via unbounded password hashing

Published Apr 27, 2020 · Updated Aug 4, 2024

Resource exhaustion in Red Hat Identity Management IPA 4.x.x through 4.8.0 allows remote attackers to interrupt the website via long passwords. The password-setting path hashes passwords without first enforcing a maximum length, so a request of at least 1,000,000 characters consumes excessive CPU and memory. A remote password submission must be processed, with user interaction but no attacker privileges; resource exhaustion can interrupt the service.

CVSS severity5.3
Medium
EPSS probability1.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Red Hat Identity Management IPA 4.x.x through 4.8.0 allows remote attackers to interrupt the website via long passwords. The password-setting path hashes passwords without first enforcing a maximum length, so a request of at least 1,000,000 characters consumes excessive CPU and memory. A remote password submission must be processed, with user interaction but no attacker privileges; resource exhaustion can interrupt the service.

The record

CVE
CVE-2020-1722
Published
Apr 27, 2020
Updated
Aug 4, 2024
Vendor
Red Hat
Product
Red Hat Identity Management
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=all ipa versions 4.x.x through 4.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Red Hat · Red Hat Identity Managementversion=all ipa versions 4.x.x through 4.8.0

Published CVSS scores

5.3Red HatCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
5.3NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
5.4NVDAV:N/AC:H/Au:N/C:N/I:N/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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