Red Hat Enterprise Linux 7: Use of Password Hash With Insufficient Computational Effort
CVE-2024-3183 is a high-severity use of password hash with insufficient computational effort vulnerability in Red Hat Enterprise Linux 7 from Red Hat, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 2.05% chance of exploitation within 30 days, higher than 82% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Red Hat Enterprise Linux 7 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on access.redhat.com for workarounds and exact fixed builds.
Affected products and versions
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.1 | High | CNA (redhat.com) |
| CVSS 3.1 | 8.1 | High | NVD |
Official description
A vulnerability was found in FreeIPA in a way when a Kerberos TGS-REQ is encrypted using the client’s session key. This key is different for each new session, which protects it from brute force attacks. However, the ticket it contains is encrypted using the target principal key directly. For user principals, this key is a hash of a public per-principal randomly-generated salt and the user’s password. If a principal is compromised it means the attacker would be able to retrieve tickets encrypted to any principal, all of them being encrypted by their own key directly. By taking these tickets and salts offline, the attacker could run brute force attacks to find character strings able to decrypt tickets when combined to a principal salt (i.e. find the principal’s password).
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Use of Password Hash With Insufficient Computational Effort
The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive.
How developers prevent this class of flaw
- When using industry-approved techniques, use them correctly. Don't cut corners by skipping resource-intensive steps (CWE-325). These steps are often essential for preventing common attacks.
More Use of Password Hash With Insufficient Computational Effort vulnerabilities (CWE-916)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- access.redhat.com/errata/RHSA-2024:3754
- access.redhat.com/errata/RHSA-2024:3755
- access.redhat.com/errata/RHSA-2024:3756
- access.redhat.com/errata/RHSA-2024:3757
- access.redhat.com/errata/RHSA-2024:3758
- access.redhat.com/errata/RHSA-2024:3759
- access.redhat.com/errata/RHSA-2024:3760
- access.redhat.com/errata/RHSA-2024:3761
- access.redhat.com/errata/RHSA-2024:3775
- access.redhat.com/security/cve/CVE-2024-3183
- bugzilla.redhat.com/show_bug.cgi?id=2270685Issue Tracking
Patches and release notes
- freeipa.org/release-notes/4-12-1.htmlRelease Notes
Other references
Other vulnerabilities in Red Hat Enterprise Linux 7
- 7.8 High severity
- 7.5 High severity
- 7.5 High severity
- 7.9 High severity
- 7.3 High severity
- 7.5 High severity
Recent Use of Password Hash With Insufficient Computational Effort vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
- 8.1 High severity
- 7.5 High severity
Spotted an error? Tell us.